Eastern Massachusetts Vascular Plants
Explore [Community Types Where Each Plant Is Present] or [Plants Characteristic of Each Community Type]
The list includes 395 vascular plants mentioned in NHESP fact sheets describing eastern MA communities

  1. Acer pensylvanicum (striped maple) [1] [2]
  2. Acer rubrum (red maple) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25]
  3. Acer saccharinum (silver maple) [1] [2]
  4. Acer saccharum (sugar maple) [1] [2]
  5. Acer spicatum (mountain-maple) [1]
  6. Achillea millefolium ssp. lanulosa (common yarrow) [1]
  7. Achillea millefolium ssp. millefolium (yarrow) [1]
  8. Acorus calamus (single-veined sweetflag) [1] [2]
  9. Adiantum pedatum (northern maidenhair) [1]
  10. Agalinis acuta (sandplain gerardia) [1]
  11. Agalinis purpurea (purple false foxglove) [1]
  12. Agrostis stolonifera (marsh benthgrass) [1] [2]
  13. Aletris farinosa (colic-root) [1]
  14. Alnus rugosa (speckled alder) [1] [2] [3] [4] — as Alnus incana ssp. rugosa
  15. Alnus serrulata (smooth alder, common alder) [1] [2] [3]
  16. Alnus spp. (alders) [1]
  17. Amaranthus cannabinus (saltmarsh-hemp) [1]
  18. Amelanchier arborea (downy serviceberry) [1]
  19. Amelanchier spp. (shadbushes) [1] [2] [3]
  20. Ammophila breviligulata (dune grass) [1] [2] [3] [4] — as Ammophila breviligulata ssp. breviligulata
  21. Andromeda polifolia var. glaucophylla (bog rosemary) [1] [2] [3]
  22. Aquilegia canadensis (wild columbine, red columbine) [1]
  23. Aralia nudicaulis (wild sarsaparilla) [1] [2] [3] [4] [5] [6]
  24. Arctostaphylos uva-ursi (bearberry) [1] [2] [3] [4] [5] [6] [7] [8]
  25. Arethusa bulbosa (dragon's mouth) [1]
  26. Aristida purpurascens (purple needle-grass) [1]
  27. Aronia arbutifolia (red chokeberry) [1]
  28. Aronia melanocarpa (black chokeberry) [1] [2]
  29. Artemisia stelleriana (dustymiller, beach wormwood) [1]
  30. Artemisia vulgaris (common wormwood, mugwort) [1]
  31. Asclepias incarnata ssp. pulchra (downy swamp milkweed) [1] — as Asclepias incarnata
  32. Asclepias tuberosa (butterfly milkweed) [1] [2]
  33. Aster concolor (eastern silvery aster) [1] — as Symphyotrichum concolor
  34. Aster divaricatus (white wood aster) [1] — as Eurybia divaricata
  35. Aster novi-belgii (New York aster) [1] [2] — as Symphyotrichum novi-belgii
  36. Atriplex cristata (seabeach orache) [1]
  37. Atriplex patula (orache) [1]
  38. Aureolaria flava (smooth false foxglove) [1]
  39. Aureolaria pedicularia (fernleaf yellow false foxglove) [1]
  40. Aureolaria virginica (downy false foxglove) [1]
  41. Baccharis halimifolia (sea-myrtle) [1] [2]
  42. Baptisia tinctoria (yellow wild indigo, horsefly weed) [1]
  43. Berberis thunbergii (Japanese barberry) [1] [2] [3]
  44. Betula alleghaniensis (yellow birch) [1] [2]
  45. Betula lenta (sweet birch, cherry birch, black birch) [1] [2] [3] [4] [5]
  46. Betula nigra (river birch) [1]
  47. Betula papyrifera (paper birch) [1] [2]
  48. Betula populifolia (gray birch) [1] [2] [3] [4] [5] [6]
  49. Betula spp. (birches) [1]
  50. Bidens frondosa (beggar-ticks) [1]
  51. Bidens hyperborea (estuary beggarticks) [1]
  52. Bidens spp. (beggar-ticks, bur-marigold) [1] [2] [3]
  53. Boehmeria cylindrica (false nettle, bog-hemp) [1] [2] [3]
  54. Botrychium virginianum (rattlesnake-fern) [1]
  55. Cakile edentula (sea rocket) [1] — as Cakile edentula ssp. edentula
  56. Calamagrostis canadensis (Canada bluejoint) [1] [2] [3] [4] [5]
  57. Calla palustris (water-arum) [1]
  58. Callitriche palustris (spring water starwort) [1]
  59. Cardamine longii (Long's bittercress) [1]
  60. Cardamine spp. (cresses, bittercresses) [1]
  61. Carex comosa (bristly sedge) [1]
  62. Carex crinita (fringed sedge) [1]
  63. Carex hormathodes (saltmarsh straw sedge) [1]
  64. Carex intumescens (bladder or swamp sedge) [1] [2]
  65. Carex lacustris (marsh sedge, lakeside sedge) [1]
  66. Carex lasiocarpa var. americana (slender woolly-fruited sedge) [1] — as Carex lasiocarpa ssp. americana
  67. Carex lucorum (long-beaked Pennsylvania sedge) [1]
  68. Carex paleacea (saltmarsh sedge) [1]
  69. Carex pensylvanica (Pennsylvania sedge) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
  70. Carex platyphylla (broad-leaved woodland sedge) [1]
  71. Carex scabrata (seep sedge) [1]
  72. Carex spp. (sedges) [1] [2] [3]
  73. Carex stricta (tussock sedge) [1] [2] [3] [4] [5] [6] [7]
  74. Carex trisperma (three-seeded sedge) [1] [2]
  75. Carex utriculata (bottle sedge) [1]
  76. Carpinus caroliniana (ironwood, hornbeam) [1] [2]
  77. Carya cordiformis (bitternut hickory, swamp hickory) [1] [2]
  78. Carya glabra (pignut hickory) [1] [2]
  79. Carya ovata (shagbark hickory) [1] [2] [3]
  80. Carya spp. (hickories) [1] [2]
  81. Carya tomentosa (mockernut hickory) [1] [2]
  82. Castanea dentata (American chestnut) [1] [2] [3] [4]
  83. Celastrus orbiculatus (Oriental bittersweet, Asian bittersweet) [1] [2]
  84. Celtis occidentalis (common hackberry) [1]
  85. Cephalanthus occidentalis (common buttonbush) [1] [2] [3] [4] [5] [6]
  86. Ceratophyllum demersum (hornwort, coontail) [1]
  87. Chamaecyparis thyoides (Atlantic white cedar) [1] [2] [3] [4] [5] [6]
  88. Chamaedaphne calyculata (leatherleaf, cassandra) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
  89. Chelone glabra (white turtlehead) [1]
  90. Chrysosplenium americanum (golden saxifrage, water-carpet) [1]
  91. Cicuta bulbifera (bulblet water-hemlock) [1]
  92. Cicuta maculata (water-hemlock) [1]
  93. Cinna arundinacea (common woodreed) [1]
  94. Cladium mariscoides (twig-sedge) [1] [2]
  95. Clematis virginiana (virgin's-bower) [1]
  96. Clethra alnifolia (sweet pepperbush) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
  97. Comarum palustre (marsh cinquefoil) [1]
  98. Comptonia peregrina (sweetfern) [1] [2] [3] [4]
  99. Coptis trifolia ssp. groenlandica (three-leaf goldthread) [1] — as Coptis trifolia
  100. Corema conradii (broom-crowberry) [1]
  101. Coreopsis rosea (pink tickseed) [1]
  102. Cornus alternifolia (pagoda dogwood, alternate-leaved dogwood) [1] — as Swida alternifolia
  103. Cornus amomum (silky dogwood) [1] [2] [3] [4] [5] [6] [7] [8] — as Swida amomum
  104. Cornus florida (flowering dogwood) [1] [2] — as Benthamidia florida
  105. Cornus racemosa (gray dogwood) [1] — as Swida racemosa
  106. Cornus sericea (red osier, red-stemmed dogwood) [1] — as Swida sericea
  107. Corylus americana (American hazelnut) [1] [2] [3] [4]
  108. Corylus cornuta (beaked hazelnut) [1] [2]
  109. Crassula aquatica (shore pygmy-weed) [1]
  110. Cyperaceae spp. (sedge family plants) [1]
  111. Cyperus filicinus (fern flatsedge) [1] [2]
  112. Cypripedium acaule (pink lady's slipper) [1] [2] [3] [4] [5]
  113. Danthonia spicata (wild oatgrass, poverty grass) [1] [2] [3]
  114. Decodon verticillatus (swamp loosestrife, waterwillow) [1] [2] [3] [4]
  115. Deparia acrostichoides (silvery spleenwort) [1]
  116. Deschampsia flexuosa (common hairgrass) [1]
  117. Desmodium glutinosum (cluster-leaved ticktrefoil) [1]
  118. Desmodium paniculatum (panicled ticktrefoil) [1]
  119. Dichanthelium ovale ssp. pseudopubescens (commons' panic-grass) [1]
  120. Dichanthelium scabriusculum (harsh panic-grass) [1]
  121. Dichanthelium spp. (panic-grass) [1]
  122. Diphasiastrum digitatum (southern ground-cedar) [1] [2]
  123. Distichlis spicata (salt grass) [1]
  124. Drosera filiformis (thread-leaf sundew) [1]
  125. Drosera intermedia (spoonleaf sundew) [1] [2] [3] [4]
  126. Drosera rotundifolia (roundleaf sundew) [1] [2]
  127. Drosera spp. (sundews) [1]
  128. Dryopteris carthusiana (spinulose wood fern) [1]
  129. Dulichium arundinaceum (three-way sedge) [1] [2]
  130. Elatine minima (lesser waterwort) [1]
  131. Eleocharis parvula (dwarf spike-rush) [1] [2]
  132. Eleocharis robbinsii (Robbins' spike-rush) [1]
  133. Eleocharis rostellata (saltmarsh spikerush, beaked spikerush) [1]
  134. Eleocharis spp. (spikerushes) [1] [2]
  135. Elodea nuttallii (Nuttall's waterweed) [1]
  136. Epigaea repens (trailing arbutus, mayflower) [1]
  137. Equisetum arvense (field horsetail, common horsetail) [1]
  138. Equisetum fluviatile (river horsetail) [1]
  139. Equisetum hyemale (scouring-rush) [1]
  140. Eriocaulon aquaticum (pipewort, white buttons) [1]
  141. Eriocaulon parkeri (Parker's pipewort) [1]
  142. Eriophorum spp. (cotton-grass) [1] [2]
  143. Erythronium americanum (trout-lily) [1]
  144. Eupatorium maculatum (spotted Joe-Pye-weed) [1] — as Eutrochium maculatum
  145. Eupatorium perfoliatum (boneset, thoroughwort) [1]
  146. Eupatorium spp. (boneset) [1]
  147. Euthamia caroliniana (coastal plain slender goldenrod) [1] [2]
  148. Euthamia spp. (flat-topped goldenrods) [1]
  149. Eutrochium spp. (Joe-Pye-weed) [1]
  150. Fagus grandifolia (American beech) [1] [2] [3]
  151. Fraxinus americana (white ash) [1] [2] [3] [4]
  152. Fraxinus nigra (black ash) [1]
  153. Fraxinus pennsylvanica (green ash) [1] [2] [3]
  154. Galium circaezans (wild licorice) [1]
  155. Galium spp. (bedstraws) [1] [2]
  156. Gamochaeta purpurea (purple cudweed) [1]
  157. Gaultheria procumbens (wintergreen, checkerberry, eastern teaberry) [1] [2] [3] [4]
  158. Gaylussacia baccata (black huckleberry) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]
  159. Gaylussacia dumosa var. bigelowiana (bog huckleberry) [1] [2] — as Gaylussacia bigeloviana
  160. Gaylussacia frondosa (blue huckleberry, dangleberry) [1]
  161. Geranium maculatum (wild geranium) [1]
  162. Geranium robertianum (herb-Robert ) [1]
  163. Geum rivale (purple avens) [1]
  164. Glyceria acutiflora (sharp-scaled mannagrass) [1]
  165. Gratiola aurea (golden hedgehyssop) [1] [2]
  166. Hamamelis virginiana (witch-hazel) [1] [2] [3] [4] [5]
  167. Hepatica nobilis var. acuta (sharp-lobed liverleaf) [1] — as Anemone acutiloba
  168. Hepatica nobilis var. obtusa (blunt-lobed liverleaf) [1] — as Anemone americana
  169. Hibiscus moscheutos (swamp mallow) [1]
  170. Hieracium venosum (rattlesnake weed) [1]
  171. Honckenya peploides ssp. robusta (seabeach sandwort) [1] [2] — as Honckenya peploides
  172. Hudsonia ericoides (pinebarren golden heather) [1] [2]
  173. Hudsonia spp. (golden heathers) [1]
  174. Hudsonia tomentosa (woolly beach heather) [1] [2] [3]
  175. Hydrocotyle verticillata (saltpond pennywort) [1]
  176. Hypericum mutilum (dwarf St. John's-wort) [1]
  177. Hypericum spp. (St. John's-wort) [1]
  178. Hystrix patula (bottlebrush grass) [1] — as Elymus hystrix
  179. Ilex glabra (inkberry) [1] [2] [3]
  180. Ilex laevigata (smooth winterberry) [1]
  181. Ilex opaca (American holly) [1] [2] [3]
  182. Ilex verticillata (common winterberry) [1] [2] [3] [4] [5] [6] [7] [8] [9]
  183. Impatiens capensis (jewelweed) [1] [2] [3]
  184. Impatiens spp. (touch-me-not) [1] [2]
  185. Ionactis linariifolia (stiff aster, spruce aster) [1]
  186. Iva frutescens ssp. oraria (hightide bush, saltmarsh-elder) [1] — as Iva frutescens
  187. Juncus canadensis (marsh or Canada rush) [1] [2] [3]
  188. Juncus gerardii (saltmarsh rush) [1]
  189. Juncus militaris (bayonet rush) [1] [2]
  190. Juncus pelocarpus (pondshore rush) [1] [2] [3] [4] [5]
  191. Juncus spp. (rushes) [1] [2]
  192. Juniperus virginiana (eastern red cedar) [1] [2] [3] [4] [5] [6]
  193. Kalmia angustifolia (sheep laurel) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
  194. Kalmia latifolia (mountain laurel) [1] [2] [3] [4] [5] [6] [7]
  195. Kalmia polifolia (bog laurel) [1] [2]
  196. Larix laricina (tamarack, American larch) [1] [2]
  197. Lathyrus japonicus var. maritimus (beach pea) [1] [2] — as Lathyrus japonicus
  198. Lechea maritima (beach pinweed) [1]
  199. Leersia oryzoides (rice cutgrass) [1] [2] [3]
  200. Lemna spp. (duckweeds) [1]
  201. Leucothoe racemosa (swamp sweetbells) [1] — as Eubotrys racemosa
  202. Ligustrum vulgare (European common privet) [1]
  203. Lilaeopsis chinensis (lilaeopsis) [1]
  204. Limonium carolinianum (sea lavender) [1]
  205. Limosella australis (Atlantic mudwort) [1]
  206. Lindera benzoin (spicebush) [1] [2] [3]
  207. Lindernia dubia var. anagallidea (false pimpernel) [1] [2] — as Lindernia dubia
  208. Linum intercursum (sandplain flax) [1] [2]
  209. Linum medium var. texanum (Texan flax) [1]
  210. Lonicera japonica (Japanese honeysuckle) [1]
  211. Lonicera morrowii (Morrow's honeysuckle) [1] [2] [3] [4] [5]
  212. Lonicera spp. (honeysuckle) [1]
  213. Ludwigia palustris (water purslane, mud loosestrife) [1]
  214. Lycopodiella appressa (southern bog clubmoss) [1]
  215. Lycopodium clavatum (running clubmoss, common clubmoss) [1] [2]
  216. Lycopodium obscurum (princess-pine or tree clubmoss) [1] [2] — as Dendrolycopodium obscurum
  217. Lycopus spp. (water horehounds) [1] [2] [3]
  218. Lycopus uniflorus (tuberous water-horehound) [1] [2] [3]
  219. Lyonia ligustrina (maleberry) [1] [2]
  220. Lysimachia nummularia (creeping jenny, moneywort) [1]
  221. Lysimachia quadrifolia (whorled loosestrife) [1]
  222. Lysimachia terrestris (swamp candles) [1] [2] [3] [4] [5]
  223. Lythrum salicaria (purple loosestrife) [1] [2] [3] [4]
  224. Maianthemum canadense (Canada mayflower) [1] [2] [3]
  225. Malaxis bayardii (barrens adder's mouth) [1]
  226. Matteuccia struthiopteris (ostrich fern) [1]
  227. Melampyrum lineare (cowwheat) [1] [2] [3]
  228. Menyanthes trifoliata (bogbeans) [1]
  229. Mikania scandens (climbing hempvine) [1]
  230. Mitchella repens (partridgeberry) [1] [2] [3]
  231. Myosotis scorpioides (true forget-me-not) [1]
  232. Myrica gale (sweet gale) [1] [2] [3] [4] [5]
  233. Myrica pensylvanica (bayberry) [1] [2] [3] [4] [5] [6] [7] [8] [9] — as Morella pensylvanica
  234. Nemopanthus mucronatus (catberry) [1] [2] — as Ilex mucronata
  235. Nuphar variegata (yellow waterlily, spatterdock) [1] — as Nuphar spp.
  236. Nymphaea odorata (American white waterlily, fragrant waterlily) [1]
  237. Nyssa sylvatica (tupelo, black gum) [1] [2] [3] [4] [5]
  238. Onoclea sensibilis (sensitive fern) [1] [2] [3] [4] [5] [6] [7] [8]
  239. Osmunda cinnamomea (cinnamon fern) [1] [2] [3] [4] [5] [6] [7] — as Osmundastrum cinnamomeum
  240. Osmunda regalis (royal fern) [1] [2] [3] [4] [5] [6] [7] [8]
  241. Ostrya virginiana (eastern hop-hornbeam) [1] [2]
  242. Panicum spp. (panic-grass) [1]
  243. Panicum virgatum (switchgrass) [1] [2] [3]
  244. Parthenocissus quinquefolia (Virginia creeper) [1] [2] [3]
  245. Peltandra virginica (arrow-arum) [1] [2]
  246. Phalaris arundinacea (reed canarygrass) [1] [2] [3]
  247. Phragmites australis (common reed) [1] [2] [3] [4] [5] [6]
  248. Phragmites australis ssp. americanus (North American reed) [1]
  249. Picea mariana (black spruce) [1] [2] [3]
  250. Picea rubens (red spruce) [1]
  251. Pilea pumila (clearweed, richweed) [1]
  252. Pinus rigida (pitch pine) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]
  253. Pinus strobus (white pine) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]
  254. Platanthera lacera (ragged fringed orchid) [1]
  255. Pluchea odorata var. succulenta (saltmarsh fleabane) [1] — as Pluchea odorata
  256. Pogonia ophioglossoides (rose pogonia) [1] [2]
  257. Polygala paucifolia (fringed polygala, flowering wintergreen) [1]
  258. Polygonella articulata (jointweed) [1] — as Polygonum articulatum
  259. Polygonum arifolium (halberdleaf tearthumb) [1] — as Persicaria arifolia
  260. Polygonum cuspidatum (Japanese knotweed) [1] — as Fallopia japonica
  261. Polygonum punctatum (dotted smartweed) [1] — as Persicaria punctata
  262. Polygonum sagittatum (arrowleaf tearthumb) [1] — as Persicaria sagittata
  263. Polystichum acrostichoides (Christmas fern) [1]
  264. Pontederia cordata (pickerelweed) [1]
  265. Populus spp. (aspens) [1]
  266. Populus tremuloides (trembling aspen) [1] [2]
  267. Potamogeton spp. (pondweeds) [1] [2]
  268. Prunus maritima (beach plum) [1] [2] [3] [4]
  269. Prunus pensylvanica (pin cherry, fire cherry, bird cherry) [1]
  270. Prunus serotina (black cherry) [1] [2] [3] [4] [5] [6] [7] [8] [9]
  271. Pteridium aquilinum var. latiusculum (bracken fern) [1] [2] [3] [4] [5] [6] [7] [8] — as Pteridium aquilinum
  272. Ptilimnium capillaceum (Mock Bishop's weed) [1]
  273. Quercus alba (white oak) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
  274. Quercus bicolor (swamp white oak) [1] [2] [3] [4] [5]
  275. Quercus coccinea (scarlet oak) [1] [2] [3] [4] [5] [6] [7] [8]
  276. Quercus ilicifolia (scrub oak, bear oak) [1] [2] [3] [4] [5] [6]
  277. Quercus montana (chestnut oak) [1] [2] [3] [4] [5] [6] [7]
  278. Quercus palustris (pin oak) [1] [2]
  279. Quercus prinoides (dwarf chestnut oak) [1] [2] [3] [4]
  280. Quercus rubra (northern red oak) [1] [2] [3] [4] [5] [6] [7] [8]
  281. Quercus spp. (oaks) [1]
  282. Quercus stellata (post oak) [1]
  283. Quercus velutina (black oak) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
  284. Ranunculus cymbalaria (seaside crowfoot) [1]
  285. Rhamnus alnifolia (alder-leaf buckthorn) [1]
  286. Rhamnus cathartica (common buckthorn) [1] [2]
  287. Rhamnus frangula (glossy buckthorn) [1] [2] [3] [4] — as Frangula alnus
  288. Rhododendron canadense (rhodora) [1] [2] [3] [4]
  289. Rhododendron groenlandicum (Labrador tea) [1] [2]
  290. Rhododendron viscosum (swamp azalea) [1] [2] [3] [4] [5] [6] [7] [8] [9]
  291. Rhus copallina (flameleaf sumac, winged sumac) [1] [2] — as Rhus copallinum
  292. Rhynchospora alba (white beak-rush) [1] [2] [3]
  293. Rhynchospora capitellata (brown beak-rush) [1]
  294. Rhynchospora spp. (beak rushes, bald sedges, horned sedges) [1] [2] [3]
  295. Rosa carolina (Carolina rose, pasture rose) [1]
  296. Rosa multiflora (multiflora rose) [1] [2] [3] [4]
  297. Rosa palustris (swamp rose) [1] [2]
  298. Rosa rugosa (Japanese rose, saltspray rose) [1]
  299. Rubus flagellaris (northern dewberry) [1]
  300. Rubus hispidus (bristly dewberry) [1] [2] [3]
  301. Rubus spp. (blackberries) [1]
  302. Rumex brittanica (great water dock) [1]
  303. Ruppia maritima (ditch-grass, widgeon-grass) [1]
  304. Sabatia kennedyana (Plymouth gentian) [1]
  305. Sagittaria graminea (grass-leaf arrowhead) [1]
  306. Sagittaria latifolia (common arrowhead) [1] [2]
  307. Sagittaria spp. (arrowhead) [1]
  308. Sagittaria subulata (river-arrowhead) [1]
  309. Salicornia spp. (glassworts, saltworts) [1]
  310. Salix discolor (large pussy willow) [1]
  311. Salix nigra (black willow) [1]
  312. Salix spp. (willows) [1]
  313. Salsola kali (prickly or seabeach saltwort) [1] — as Salsola kali ssp. kali
  314. Salsola kali ssp. tragus (Russian thistle) [1] — as Salsola tragus
  315. Sambucus canadensis (common elderberry) [1] [2] — as Sambucus nigra ssp. canadensis
  316. Samolus valerandi (water-pimpernel) [1] — as Samolus floribundus
  317. Sanguinaria canadensis (bloodroot) [1]
  318. Sanguisorba canadensis (Canadian burnet, American burnet) [1]
  319. Sarracenia purpurea (purple pitcherplant) [1] [2] [3] [4]
  320. Sassafras albidum (sassafras) [1] [2] [3] [4] [5] [6]
  321. Schizachyrium scoparium (little bluestem) [1] [2] [3] [4] [5] [6]
  322. Schoenoplectus spp. (bulrushes and threesquares) [1]
  323. Schoenoplectus torreyi (Torrey's bulrush) [1]
  324. Scirpus acutus (hard-stemmed bulrush) [1] — as Schoenoplectus acutus
  325. Scirpus americanus (saltmarsh threesquare) [1] — as Schoenoplectus americanus
  326. Scirpus atrocinctus (black-girdled woolsedge, dusky woolgrass) [1]
  327. Scirpus cyperinus (common bulrush) [1] [2] [3]
  328. Scirpus hattorianus (meadow bulrush) [1]
  329. Scirpus microcarpus (red-stemmed bulrush) [1]
  330. Scirpus pungens (common threesquare) [1] [2] [3] [4] [5]
  331. Scirpus robustus (saltmarsh bulrush) [1] — as Bolboschoenus robustus
  332. Scirpus tabernaemontani (soft-stemmed bulrush) [1] [2] — as Schoenoplectus tabernaemontani
  333. Senecio aureus (golden ragwort) [1] — as Packera aurea
  334. Sisyrinchium fuscatum (sandplain blue-eyed grass) [1] [2]
  335. Sium suave (water parsnip) [1]
  336. Smilacina racemosa (false Solomon's seal) [1] [2] — as Maianthemum racemosum
  337. Smilacina stellata (starry Solomon's seal) [1] — as Maianthemum stellatum
  338. Smilacina trifolia (three-leaved false Solomon's seal) [1] [2] — as Maianthemum trifolium
  339. Smilax rotundifolia (catbrier, bullbrier) [1] [2] [3] [4] [5] [6] [7] [8] [9]
  340. Smilax spp. (catbrier, sawbrier) [1]
  341. Solidago bicolor (silverrod, white goldenrod) [1]
  342. Solidago sempervirens (seaside goldenrod) [1] [2] [3] [4]
  343. Solidago spp. (goldenrods) [1] [2]
  344. Sparganium eurycarpum (giant bur-reed) [1]
  345. Sparganium spp. (bur-reed) [1] [2]
  346. Spartina alterniflora (saltwater cordgrass) [1] [2]
  347. Spartina patens (salt-hay) [1] [2]
  348. Spartina pectinata (freshwater or prairie cordgrass) [1] [2] [3]
  349. Spiraea alba var. latifolia (meadowsweet) [1] [2] [3] [4] [5]
  350. Spiraea spp. (meadowsweet, steeplebush) [1]
  351. Spiraea tomentosa (steeplebush) [1] [2] [3]
  352. Spiranthes cernua (nodding ladies' tresses) [1]
  353. Stuckenia pectinata (sago false pondweed, sago pondweed) [1]
  354. Symphyotrichum prenanthoides (crooked-stemmed aster) [1]
  355. Symplocarpus foetidus (skunk cabbage) [1] [2] [3]
  356. Tephrosia virginiana (goat's rue) [1]
  357. Thalictrum revolutum (waxy-leaved meadowrue) [1]
  358. Thelypteris palustris (marsh fern) [1] [2] [3] [4] [5] [6] [7] [8] [9]
  359. Thelypteris simulata (Massachusetts fern) [1]
  360. Tilia americana (basswood, American linden) [1] [2]
  361. Torreyochloa pallida (pale mannagrass) [1] — as Glyceria pallida
  362. Toxicodendron radicans (poison ivy) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
  363. Toxicodendron vernix (poison sumac) [1] [2] [3] [4]
  364. Triadenum spp. (marsh St. John's-worts) [1]
  365. Triadenum virginicum (marsh St. John's-wort) [1] [2] [3] [4] [5] [6]
  366. Trientalis borealis (American starflower) [1] [2] [3] — as Lysimachia borealis
  367. Trillium undulatum (painted trillium) [1]
  368. Tsuga canadensis (eastern hemlock) [1] [2] [3] [4]
  369. Typha angustifolia (narrow-leaved cattail) [1] [2] [3] [4]
  370. Typha latifolia (broad-leaved cattail) [1] [2]
  371. Typha spp. (cattails) [1]
  372. Ulmus americana (American elm, white elm) [1] [2] [3] [4]
  373. Ulmus rubra (slippery elm) [1]
  374. Uvularia sessilifolia (little merrybells) [1]
  375. Vaccinium angustifolium (lowbush blueberry) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]
  376. Vaccinium corymbosum (highbush blueberry) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]
  377. Vaccinium macrocarpon (American cranberry, large cranberry) [1] [2] [3] [4] [5] [6]
  378. Vaccinium oxycoccos (small cranberry) [1] [2] [3]
  379. Vaccinium pallidum (hillside blueberry, dryland blueberry) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
  380. Viburnum acerifolium (maple-leaf viburnum) [1] [2] [3] [4] [5]
  381. Viburnum dentatum var. lucidum (northern arrowwood) [1] [2] [3] [4] [5] [6] — as Viburnum dentatum
  382. Viburnum lantanoides (hobblebush) [1]
  383. Viburnum lentago (nannyberry, sweet viburnum) [1]
  384. Viburnum nudum var. cassinoides (wild raisin, witherod) [1]
  385. Viburnum spp. (viburnums) [1]
  386. Viola lanceolata (bog white violet, lanceleaf violet) [1]
  387. Viola pedata (birdsfoot violet) [1]
  388. Vitis aestivalis (summer grape) [1]
  389. Vitis spp. (grapes) [1] [2]
  390. Woodwardia areolata (netted chain fern) [1]
  391. Woodwardia virginica (Virginia chain fern) [1] [2] [3]
  392. Xyris spp. (yellow-eyed grass) [1]
  393. Zannichellia palustris (horned pondweed) [1]
  394. Zizania aquatica (wild rice) [1] [2] [3]
  395. Zostera marina (eel grass) [1] [2]