Vegetation Inventory of Harvard Forest 1937

uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/4298b9ff24b6f729aab90903841c2ed6 Vegetation Inventory of Harvard Forest 1937 Neil Hosley 2023 English

The three main tracts of the Harvard Forest (3000 acres) in Petersham, MA have been sampled every 10-30 years since 1907. Though methods have varied, each survey has involved mapping forest stands followed by intensive sampling. The 1937 forest inventory was conducted one year before 75% of the standing timber at Harvard Forest was blown down by the 1938 hurricane. This valuable data set shows maximum vegetation development since agricultural abandonment. Data collected in this inventory include tree volume by species and presence/absence of advance regeneration, shrubs, herbs and bryophytes.

inventories permanent plots vegetation dynamics LTER controlled vocabulary populations LTER core area Harvard Forest HFR LTER USA HFR default

This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.

Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf039 Harvard Forest. Coordinates based on WGS84 datum. -72.23 -72.16 +42.55 +42.45 205 420 meter 1937 1937 complete Information Manager Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 hf-im@lists.fas.harvard.edu Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu

Introduction The following "Directions for Reinventory of Forest, 1937" were transcribed by Audrey Barker Plotkin from original in HF Archives.

Boundary Survey Compartment Boundaries: All are to be surveyed by transit and tape within accuracy limits of 2:1000. Notes are to be computed by latitudes and departures. Main corners of external boundaries are to be marked with 1" galvanized pipes having brass caps marked with H. F. and a set of serial numbers for each block, the numbers starting with one at the westernmost part and going clockwise around the block. Internal compartment lines and minor corners of external boundaries are to be marked by iron pipes. All pipes (but not the caps) are to be painted orange.

Course Mapping: Any stands of 1/40 acre or over are to be mapped. Method of Cruising: A modification of the line-plot method with circular plots of ¼ acre (59' radius), or halves or quarters of this is to be used. In stands large enough to warrant it plots are to be spaced evenly at either 600' (27% cruise) or 800' (15%) intervals on the cruise lines according to the uniformity of the stand. Lines will be run N. - S. or E. - W. so as to accurately locate the boundaries of all stands. In most of the Forest this will necessitate distances between lines of not more than 300'. In compartments not broken up by big cuttings or openings, lines will be run from boundary to boundary but this does not necessarily have to be followed where offsets will more effectively tie in the stands. In small stands plots will be located either on or off the lines according to judgment as to where the most representative samples can be gotten.

Plot Description A number will be assigned to each plot taken by means of a metal tag nailed to the central tree on the south side at or near d.b.h. This number will be placed on the field map with a circle to show the plot location. Area of the plot will be given as 1/4 acre, 1/8 acre, etc. Actual age of the stand will be gotten as closely as possible. Pines can be counted back by whorls accurately enough for the purpose. Hardwoods in even-aged stands should have an overtopped tree bored at stump height to check ages. In uneven-aged stands the range of ages should be given. Economic age is used for stands which, at some period, have grown under an overwood. The figure given is based on the age which would have been required to reach present size if the stand had been free to grow. Density class is an ocular estimate of degree of stocking. Fully stocked stands are called density class I, medium stocked one II and understocked III. Site class is also largely based on ocular estimates of the relative growth and development of the species occupying the sites. Three classes are used and, in general, it can be said that the west slope on the east side of Tom Swamp Pond is site I, most of Prospect Hill II, and the sandy or gravelly eskers in Tom Swamp VII site III. The seepage areas in all blocks are apt to approach site I if not too wet. Form is simply used to designate whether a stand is even-aged (E.A.), uneven-aged (U.A.) or two-storied. Form class is the arbitrary group of absolute form-quotient units into which a given stand falls. These classes are estimated in five-unit classes, i.e. .60, .65 etc. Form classes in white pine can be estimated by use of the crown indexes and dead lengths in Harvard Forest Bulletin 13 until the cruiser becomes enough accustomed to estimating by means of age and density of stocking. As a guide, the open grown, 50-year-old white pines in the north end of the Adams-Fay lot are in form class 50 while the older, densely grown ones between the strip cuttings in the south end of the lot are in class 72. With all hardwoods except gray birch the average form class of trees 7" and over is 65 (Hawley and Wheaton, 1926), with the trend indicated to be slightly upward for smaller sizes but anything measured of the better hardwoods can be assumed to fall in this class. Gray birch falls between form classes .55 and .60, being closer to .60. Quality for pine stands is designated as "better than box," "box," and "poor box" and the hardwoods as "sawtimber" or "cordwood." Ground cover is described to give an extensive picture of the wildlife food production in the stands. Ground cover should first be described as "dense," medium," "sparse" or lacking and then the species included should be listed in order of abundance. Whenever possible, plants should be identified to species. Advance growth as described is, of course, the guide as to what may be expected as the next crop and as to treatment needed. It should be described first as "dense," "medium, " spars" or lacking and then the species should be listed in order of abundance. Silvicultural condition and treatment is used to describe the stand in general terms as to what has been done and what is needed. This is one of the most important pieces of information to be gotten and, accordingly, should not be slighted. Ring width is used in mature stands to denote whether the average tree is making appreciable growth. A boring is made at or near breast height to a depth of around one inch and the ring widths for the last ten years marked in the space provided on the plot sheet with the bark indicated as a longer line, thus: '''''''| . After the current year's growth has begun, neglect that and place the bark mark at the start of this growth. Remarks is used for anything pertinent that occurs to the cruiser by way of description or needed treatment. Tally of the timber on the plot is by means of diameters taken with a tape and heights are gotten to the nearest five-foot class [minimum diameter recorded = 2 inches; trees tallied by species, 1" diameter class and 5' height class]. A Faustmann hypsometer or Abney graduated in per cent is used for checking heights and for getting the cruiser accustomed to estimating heights accurately. All trees are listed by species.

Computation of Tally Volume Tables (all cubic foot). Better hardwoods - Hawley and Wheaton, F.C. 65. Cordwood - Red maple, Cook, Mass. Table; Gray birch, Hawley and Wheaton, F.C. 60. White pine - H.F. Bulletin 13. Hemlock - Merrill. Spruce - H.F. Bulleting 19. Red pine - Canadian Table (F. Class). Yield Tables. White pine - Cook. Spruce - H.F. Bulletin 19. Hemlock - Merrill and Hawley, 1924. Better hardwoods - Spaeth. Inferior hardwoods - Spaeth.

Harvard Forest Long-Term Ecological Research Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu https://ror.org/059cpzx98 pointOfContact The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts. National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210. hf039-01-plot.csv plot data for Prospect Hill, Tom Swamp and Slab City hf039-01-plot.csv 83001 71309f50e462fb79e6d4f1adb8badbec 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p03/hf039/hf039-01-plot.csv tract tract of land surveyed PH Prospect Hill TS Tom Swamp SC Slab City NA missing value comp compartment number (1-10) compartment number (1-10) NA missing value stand qualitative identifier assigned by surveyor (Cd=cordwood; Hd=hardwood; Hm=hemlock; P=pine; Sp=spruce; Sw=softwood) qualitative identifier assigned by surveyor (Cd=cordwood; Hd=hardwood; Hm=hemlock; P=pine; Sp=spruce; Sw=softwood) NA missing value plotno_37 original (1937) plot number original (1937) plot number NA missing value size_acres area in acres. Plots were either ¼ acre (0.25), 1/8 acre (0.125) or 1/16 acre (0.0625) acre 0.0001 real NA missing value date original survey date. Typed into data file for SC only, but on paper data sheets for all plots. YYYY-MM-DD 1 day NA missing value age approximate tree age (years) approximate tree age (years) NA missing value dens density classification (I – III+). Fully stocked stands are called density class I, medium stocked are II and understocked are III. density classification (I – III+). Fully stocked stands are called density class I, medium stocked are II and understocked are III. NA missing value site_class classification (I – III+). Three classes are used and, in general, it can be said that the west slope on the east side of Tom Swamp Pond is site I, most of Prospect Hill II, and the sandy or gravelly eskers in Tom Swamp VII site III. The seepage areas in all blocks are apt to approach site I if not too wet. classification (I – III+). Three classes are used and, in general, it can be said that the west slope on the east side of Tom Swamp Pond is site I, most of Prospect Hill II, and the sandy or gravelly eskers in Tom Swamp VII site III. The seepage areas in all blocks are apt to approach site I if not too wet. NA missing value quality best use of wood (Sw=sawtimber; Cd=Cordwood; Bx=for box construction; Pine Box=sometimes P Bx; Fair Cd=Bx, Sw; Poor Cd=Bx, Sw, sometimes abbreviated as Cd-, etc.; Med; Bx+=better than box) best use of wood (Sw=sawtimber; Cd=Cordwood; Bx=for box construction; Pine Box=sometimes P Bx; Fair Cd=Bx, Sw; Poor Cd=Bx, Sw, sometimes abbreviated as Cd-, etc.; Med; Bx+=better than box) NA missing value litter_in litter layer inch 0.01 real NA missing value form form Ea even-aged Ua uneven-aged TS two-storied NA missing value form_class see methods see methods NA missing value ring_width_mm measurement of typically 10 years of growth of a cored tree (mm) measurement of typically 10 years of growth of a cored tree (mm) NA missing value yrs_ring number of rings included in the ring width number of rings included in the ring width NA missing value ring_spec acronym for species of cored tree ACPE Acer pensylvanicum ACRU Acer rubrum ACSA Acer saccharum ALsp Alder species BEsp Betula species BEAL Betula alleghaniensis BELE Betula lenta BEPA Betula papyrifera BEPO Betula populifolia CASP Carya sp. CADE Castanea dentata FAGR Fagus grandifolia FASP Fagus species FRAM Fraxinus americana FRNI Fraxinus nigra LAsp Larix species LADE Larix decidua LALA Larix laricina MAsp Malus species NYSY Nyssa sylvatica OSVI Ostrya virginiana PIAB Picea Abies PIRU Picea rubens PISP Picea sp. PINE Pine species PIRE Pinus resinosa PIRI Pinus rigida PIST Pinus strobus PISY Pinus sylvestris POSP Populus sp. PRPE Prunus pensylvanica PRSE Prunus serotina PRVI Prunus virginiana QUAL Quercus alba QUCO Quercus coccinea QUPA Quercus palustrus QURU Quercus rubra QUVE Quercus velutina ROPS Robinia pseudoacacia SAAL Sassafras albidum SOAM Sorbus Americana SPSP Spirea Species TIAM Tilia Americana TSCA Tsuga Canadensis ULAM Ulmus americana ULSP Ulmus sp. Free text (unrestricted) .* NA missing value dom_spec four-letter acronym for dominant species, if listed, or very obvious from data. Codes as for ring.spec four-letter acronym for dominant species, if listed, or very obvious from data. Codes as for ring.spec NA missing value plot_92 plot number assigned in 1992 sampling. Exists only for PH tract plot number assigned in 1992 sampling. Exists only for PH tract NA missing value url link to digital archive for the field data sheet link to digital archive for the field data sheet NA missing value 636 hf039-02-tree.csv tree data hf039-02-tree.csv 621056 0562baf6c8fc9f2b1b4dec33dbc84408 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p03/hf039/hf039-02-tree.csv tract tract of land surveyed PH Prospect Hill TS Tom Swamp SC Slab City NA missing value comp compartment number 1-9 on Prospect Hill compartment number 1-9 on Prospect Hill plotno_37 original (1937) plot number original (1937) plot number species four-letter acronym ACPE Acer pensylvanicum ACRU Acer rubrum ACSA Acer saccharum BEAL Betula alleghaniensis BELE Betula lenta BEPA Betula papyrifera BEPO Betula populifolia CASP Carya sp. FAGR Fagus grandifolia FRAM Fraxinus americana FRNI Fraxinus nigra LADE Larix decidua NYSY Nyssa sylvatica OSVI Ostrya virginiana PIRU Picea rubens PISP Picea sp. PIRE Pinus resinosa PIRI Pinus rigida PIST Pinus strobus PISY Pinus sylvestris POSP Populus sp. PRPE Prunus pensylvanica PRSE Prunus serotina PRVI Prunus virginiana QUAL Quercus alba QUCO Quercus coccinea QURU Quercus rubra QUVE Quercus velutina ROPS Robinia pseudo-acacia TIAM Tilia americana TSCA Tsuga canadensis ULSP Ulmus sp. dbh_in diameter-breast-height in 1-inch classes inch 1 natural NA missing value ht_ft height in feet; 5-foot classes foot 5 natural NA missing value no_stem number of individuals per DBH*HEIGHT class number 1 natural NA missing value plot_92 GIS plot number assigned to corresponding 1992 plots. Plots not sampled in 1992 = NA GIS plot number assigned to corresponding 1992 plots. Plots not sampled in 1992 = NA 24917 hf039-03-species.csv vegetation species list hf039-03-species.csv 13940 2bd37b360994509c6b6711319aeb49c9 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p03/hf039/hf039-03-species.csv code : six-letter code for each taxon. Typically the first 3 letters of the genus followed by the first 3 letters of the species, but to avoid non-unique codes, in a few cases it is the first 4 letters of the genus followed by ‘sp’ or the first 2 letters of the species. . In one case (Smilax sp.) the code is simply the genus name. : six-letter code for each taxon. Typically the first 3 letters of the genus followed by the first 3 letters of the species, but to avoid non-unique codes, in a few cases it is the first 4 letters of the genus followed by ‘sp’ or the first 2 letters of the species. NA missing value genus_species genus and species of the taxon genus and species of the taxon NA missing value genus genus of the taxon genus of the taxon NA missing value common_name common name for the taxon or group common name for the taxon or group NA missing value life_form type of life form clubmoss clubmoss fern true ferns & succulent ferns graminoid grasses and sedges herb non-woody vascular flowering plant (not graminoid) moss bryophyte shrub woody vascular plant that typically does not reach tree size tree woody vascular plant that typically reaches tree size ph taxon recorded in at least one plot on the Prospect Hill Tract (151 of the taxa noted in the vegetation survey; all species also seen in SC & TS) 1 presence 0 absence NA missing value ts taxon recorded in at least one plot on the Tom Swamp Tract (192 of the taxa noted in the vegetation survey; all species also seen in SC) 1 presence 0 absence NA missing value sc taxon recorded in at least one plot on the Slab City Tract (all 201 taxa noted in the vegetation survey) 1 presence 0 absence NA missing value notes alternative names or information about how the plant was noted on the field data sheets alternative names or information about how the plant was noted on the field data sheets NA missing value 201 hf039-04-vegetation.csv vegetation presence/absence data hf039-04-vegetation.csv 267276 c0117173235ef9d9e24f12bc494378cc 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p03/hf039/hf039-04-vegetation.csv tract tract of land surveyed PH Prospect Hill TS Tom Swamp SC Slab City NA missing value comp compartment number (1-10) compartment number (1-10) NA missing value plotno_37 original (1937) plot number original (1937) plot number NA missing value acepen Acer pensylvanicum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value acerub Acer rubrum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value acesac Acer saccharum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value acespi Acer spicatum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value achmil Achillea millefolium 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value actpac Actaea pachypoda 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value adiped Adiantum pedatum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value alninc Alnus incana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value alnspp Alnus species 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value amearb Amelanchier arborea 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value amecan Amelanchier canadensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ampbra Amphicarpaea bracteata 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value anespp Anemone spp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value apoand Apocynum androsaemifolium 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value aranud Aralia nudicaulis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value araspp Aralia sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value aritri Arisaema triphyllum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value aromel Aronia melanocarpa 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value arospp Aronia sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ascspp Asclepsias sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value aspspp Asplenium sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value astacu Aster acuminatis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value astdiv Aster divaricatus 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value astspp Aster sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value betall Betula allegheniensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value betlen Betula lenta 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value betpap Betula papyrifera 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value betpop Betula populifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value betspp Betula sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value botvir Botrychium virginianum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value carspp Carex spp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value carcar Carpinus caroliniana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value carysp Carya sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value casden Castanea dentata 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value celsca Celastrus scandens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value cepocc Cephalanthus occidentalis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value chiumb Chimaphila umbellata 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value clevir Clematis virginiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value clibor Clintonia borealis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value conmaj Convallaria majalis L. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value conspp Convolvulus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value copgro Coptis groenlandica 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value coralt Cornus alternifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value corcan Cornus canadensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value corcor Corylus cornuta 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value corysp Corylus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value craspp Crataegus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value cypaca Cypripedium acaule 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value denpun Dennstaedtia punctilobula 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value dielon Diervilla lonicera 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value drycar Dryopteris carthusiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value drymar Dryopteris marginalis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value dryspp Dryopteris sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value epirep Epigaea repens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value epiang Epilobium angustifolium 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value epipub Epipactis pubescens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value faggra Fagus grandifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value fravir Fragaria virginiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value fraame Fraxinus americana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value franig Fraxinus nigra 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value gauhis Gaultheria hispidula 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value gaupro Gaultheria procumbens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value gayspp Gaylussacia sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value goorep Goodyera repens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value hamvir Hamamelis viginiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value hypspp Hypnum sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ilever Ilex verticillata 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value impcap Impatiens capensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value irispp Iris sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value iriver Iris versicolor 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value juncom Juniperus communis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value junhor Juniperus horizontalis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value junvir Juniperus virginiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value kalang Kalmia angustifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value kallat Kalmia latifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value kalspp Kalmia sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lacspp Lactuca sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lardec Larix decidua 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value larlar Larix laricina 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value larspp Larix sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value latspp Lathyrus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value linben Lindera benzoin 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lobspp Lobelia sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value loncan Lonicera canadensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lonspp Lonicera sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lontar Lonicera tartarica 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lycann Lycopodium annotinum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lyccom Lycopodium complanatum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lycluc Lycopodium lucidulium 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lycobs Lycopodium obscurum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lycspp Lycopodium sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lyolig Lyonia ligustrina 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lysqua Lysimachia quadifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value lysspp Lysimachia spp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value maican Maianthemum canadense 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value maiste Maianthemum stellata 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value malspp Malus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value medvir Medeola virginiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value mitrep Mitchella repens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value mitdyp Mitella dyphilla 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value moneun Moneses uniflora 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value monuni Monotropa uniflora 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value myrgal Myrica gale 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value mosssp moss 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value nemmuc Nemopanthus mucronata 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value nyssyl Nyssa sylvatica 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value onosen Onoclea sensibilis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value osmcin Osmunda cinnamomea L. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value osmcla Osmunda claytoniana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value osmreg Osmunda regalis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ostvir Ostrya virginiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value oxaace Oxalis acetocella 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value parqui Parthenocissus quinquefolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value phespp Phegopteris sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value picabi Picea abies 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value picrub Picea rubens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value picspp Picea sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pinres Pinus resinosa 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pinrig Pinus rigida 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pinspp Pinus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pinstr Pinus strobus 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pinsyl Pinus sylvestris 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value poaspp Poa spp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value polpau Polygala paucifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value polbif Polygonatum biflorum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value polper Polygonum persicaria 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value polvir Polypodium virginianum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value polvul Polypodium vulgare 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value polacr Polystichum acrostichoides 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value popspp Populus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value potcan Potentilla canadensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value potspp Potentilla sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value prespp Prenanthes sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pruvul Prunella vulgaris 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value prupen Prunus pensylvanica 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pruser Prunus serotina 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pruvir Prunus virginiana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pteaqu Pteridium aquilinum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pyrame Pyrola americana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pyrell Pyrola elliptica 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value pyrspp Pyrola sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value quealb Quercus alba 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value quepal Quercus palustris 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value querub Quercus rubra 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value quevel Quercus velutina 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ranspp Ranunculus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rhoper Rhododendron periclymenoides 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rhospp Rhododendron sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rhussp Rhus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rhutyp Rhus typhina 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value robpse Robinia pseudoacacia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rosasp Rosa sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rubaca Rubus acaulis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ruacu Rubus acueatissimus 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ruball Rubus alleghaniensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rubhis Rubus hispida 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rubida Rubus idaeus 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rubocc Rubus occidentalis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rubodo Rubus odoratis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rubpub Rubus pubescens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rubspp Rubus sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value rumace Rumex acetosella 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value samcan Sambucus canadensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value samrac Sambucus racemosa 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value sasalb Sassafras albidum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value smirac Smilacina racemosa 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value smispp Smilacina sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value smilax Smilax sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value soldul Solanum dulcimara 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value solspp Solidago sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value sorame Sorbus americana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value sphasp Sphagnum sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value spialb Spirea alba 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value spisal Spirea salcifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value spispp Spirea sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value spitom Spirea tomentosa 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value taxcan Taxus canadensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value thenov Thelypteris noveboracensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value tiacor Tiarella cordifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value tilame Tilia americana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value toxrad Toxicodendron radicans 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value toxver Toxicodendron vernix 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value tribor Trientalis borealis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value trirep Trifolium repens 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value trilsp Trillium sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value tsucan Tsuga canadensis 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value ulmame Ulmus americana 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value uvuses Uvularia sessifolia 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vacang Vaccinium angustifolium 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vaccor Vaccinium corymbosum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vaccsp Vaccinium sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vervir Veratrum viride 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vertha Verbascum thapsus 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vibace Viburnum acerfolium 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vibcas Viburnum cassenoides 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vibden Viburnum dentatum 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value viblat Viburnum latanoides 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vibnud Viburnum nudum var. cassonoides 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vibspp Viburnum sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value viospp Viola sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value vitspp Vitis sp. 1 presence 0 absence NA plot surveyed during winter or other conditions in which a species presence could not be assessed NA missing value 635 plot short-term measurement https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf015 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf037 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf110 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf271