PREPARED BY Rhode Island Rare Plants 2016 1 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 1 PTERIDOPHYTES 2 Aspleniaceae (Spleenwort Family) 3 2016-1 Asplenium montanum Mountain Spleenwort SE SE 4 2016-2 Asplenium rhizophyllum Walking Spleenwort SE SE 5 2016-3 Asplenium trichomanes Delicate Maidenhair Spleenwort C C 6 Equisetaceae (Horsetail Family) 7 2016-4 Equisetum fluviatile River Horsetail C C 8 2016-5 Equisetum hyemale ssp. affine Rough Horsetail C C 9 2016-6 Equisetum variegatum Variegated Scouring Rush SE SE 10 2016-7 Equisetum sylvaticum Wood Horsetail C C 11 Isoetaceae (Quillwort Family) 12 2016-8 Isoetes echinospora ssp. muricata Spiny-spored Quillwort C C 13 2016-9 Isoetes engelmannii Engelmann's Quillwort C C 14 2016-10 Isoetes riparia var. canadensis Canadian Shore Quillwort C C 15 2016-11 Isoetes x eatonii Eaton’s Quillwort SH SH 16 Lycopodiaceae (Clubmoss Family) 17 2016-12 Lycopodiella alopecuroides Foxtail Bog-clubmoss SE SE 18 2016-13 Lycopodium lagopus One-cone Clubmoss SE 19 2016-14 Spinulum annotinum Common Interrupted Clubmoss SE SE 20 Lygodiaceae (Climbing Fern Family) 21 2016-15 Lygodium palmatum American Climbing Fern C C 22 Onocleaceae (Sensitive Fern Family) 23 2016-16 Matteuccia struthiopteris ssp. pensylvanica Fiddlehead Fern C C 24 Ophioglossaceae (Adder's-tongue Family) 25 2016-17 Botrychium angustisegmentum Narrow Triangle Moonwort C C 26 2016-18 Botrychium matricariifolium Daisy-leaved Moonwort C C 27 2016-19 Botrychium oneidense Blunt-lobed Grape-fern SH SE 28 2016-20 Botrychium tenebrosum Swamp Moonwort C * 29 2016-21 Botrychium virginianum Rattlesnake Fern C 30 2016-22 Ophioglossum pusillum Northern Adder's-tongue Fern SE SE 31 Pteridaceae (Maidenhair Fern Family) 32 2016-23 Pellaea atropurpurea Purple Cliff-brake SE SE 33 Selaginllaceae (Spikemoss Family) 34 2016-24 Selaginella rupestris Ledge Spikemoss C * 35 Thelypteridaceae (Marsh Fern Family) 36 2016-25 Phegopteris connectilis Long Beech Fern ST C 37 Woodsiaceae (Wood-fern Family) 38 2016-26 Athyrium asplenioides Southern Lady Fern C * 39 2016-27 Gymnocarpium dryopteris Northern Oak Fern ST ST 40 2016-28 Woodsia ilvensis Rusty Cliff Fern SH SH 41 GYMNOSPERMS 42 Pinaceae (Pine Family) 43 2016-29 Larix laricina American Larch ST ST 44 2016-30 Picea mariana Black Spruce C C 45 Taxaceae (Yew Family) 46 2016-31 Taxus canadensis American Yew C C 47 ANGIOSPERMS 48 Adoxaceae (Elderberry Family) 49 2016-32 Sambucus racemosa Red Elderberry SH SH 50 2016-33 Viburnum lantanoides Hobblebush C C 51 2016-34 Viburnum nudum var. nudum Withe-rod SH SH 52 Aizoaceae (Iceplant Family) 53 2016-35 Sesuvium maritimum Annual Sea-purslane C * 54 Alismataceae (Water-Plantain Family) 55 2016-36 Helanthium tenellum Dwarf Burhead SH 56 2016-37 Sagittaria graminea var. graminea Grass-leaved Arrowhead C C 57 2016-38 Sagittaria subulata Awl-leaved Arrowhead SH SH 58 2016-39 Sagittaria teres Quill-leaved Arrowhead SE SE 59 Alliaceae (Onion Family) 60 2016-40 Allium tricoccum var. tricoccum Wild Leek C C 61 Amaranthaceae (Amaranth Family) 62 2016-41 Amaranthus pumilus Seabeach Amaranth FT/SH FT/SH 63 2016-42 Atriplex glabriuscula Bracted Orache C C 64 2016-43 Atriplex subspicata Saline Orache C *

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG PREPARED BY Rhode Island Rare Plants 2016 2 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 65 2016-44 Chenopodium berlandieri var. bushianum Pit-seeded Goosefoot C * 66 2016-45 Chenopodium leptophyllum Narrow-leaved Goosefoot C C 67 2016-46 Suaeda calceoliformis American Sea-blite C * 68 2016-47 Suaeda maritima ssp. richii Herbaceous Sea-blite C * 69 Apiaceae (Parsley Family) 70 2016-48 Angelica atropurpurea Purple-stemmed Angelica SE SE 71 2016-49 Angelica lucida Seaside Angelica ST ST 72 2016-50 Aralia racemosa American Spikenard C C 73 2016-51 Cryptotaenia canadensis Canada Honewort C C 74 2016-52 Hydrocotyle verticillata Whorled Marsh-pennywort SH SH 75 2016-53 Ligusticum scothicum Scotch Wild Lovage C C 76 2016-54 Lilaeopsis chinensis Eastern Grasswort SE SE 77 2016-55 Osmorhiza longistylis Long-styled Sweet-cicely ST ST 78 2016-56 Panax quinquefolius American Ginseng SE SE 79 2016-57 Ptilimnium capillaceum Atlantic Mock Bishop's-weed C C 80 2016-58 Sanicula canadensis var. canadensis Canada Sanicle C * 81 2016-59 Taenidia integerrima Yellow Pimpernel SH SH 82 2016-60 Zizia aptera Heart-leaved Golden Alexanders SH SH 83 Apocynaceae (Dogbane Family) 84 2016-61 Asclepias amplexicaulis Clasping Milkweed C C 85 2016-62 Asclepias exaltata Poke Milkweed C C 86 2016-63 Asclepias purpurascens Purple Milkweed SH SE 87 2016-64 Asclepias quadrifolia Four-leaved Milkweed ST ST 88 2016-65 Asclepias tuberosa Butterfly Milkweed C C 89 2016-66 Asclepias verticillata Whorled Milkweed C C 90 Araceae (Arum Family) 91 2016-67 Calla palustris Wild Calla C 92 2016-68 Lemna perpusilla Minute Duckweed C * 93 2016-69 Lemna turionifera Turion Duckweed C * 94 2016-70 Lemna valdiviana Pale Duckweed C * 95 2016-71 Orontium aquaticum Golden Club SE SE 96 Aristoloceaceae (Birthwort Family) 97 2016-72 Asarum canadense Canada Wild Ginger C * 98 Asteraceae (Aster Family) 99 2016-73 Ageratina aromatica Lesser Snakeroot SH SH 100 2016-74 Artemisia campestris ssp. caudata Field Wormwood C C 101 2016-75 Bidens connata Purple-stemmed Beggarticks C C 102 2016-76 Bidens tricosperma Crowned Beggar-ticks C C 103 2016-77 Chrysopsis mariana Maryland Golden-aster ST SE 104 2016-78 Cirsium horridulum var. horridulum Yellow Thistle ST ST 105 2016-79 Coreopsis rosea Pink Tickseed C C 106 2016-80 Doellingeria infirma Appalachian White-aster SH SH 107 2016-81 Eupatorium novae-angliae New England Thoroughwort SE SE 108 2016-82 Eurybia macrophylla Large-leaved Wood-aster C C 109 2016-83 Gamochaeta purpurea Purple Cudweed SH SH 110 2016-84 Helianthus divaricatus Woodland Sunflower C C 111 2016-85 Helianthus strumosus Pale-leaved Sunflower C * 112 2016-86 Liatris novae-angliae var. novae-angliae Northern Blazing Star SE SE 113 2016-87 Nabulus serpentarius Lion's-foot Rattlesnakeroot C C 114 2016-88 Oligoneuron rigidum var. rigidum Stiff Flat-topped-goldenrod SH SH 115 2016-89 Packera obovata Running Groundsel C * 116 2016-90 Petasites frigidus var. palmatus Northern Sweet-coltsfoot SE SE 117 2016-91 Pityopsis falcata Sickle-leaved Silk-grass C C 118 2016-92 Rudbeckia laciniata var. laciniata Green-headed Coneflower ST ST 119 2016-93 Sclerolepis uniflora Sclerolepis SE SE 120 2016-94 Senecio suaveolens False Indian-plantain SH SH 121 2016-95 Solidago flexicaulis Zig-zag Goldenrod ST ST 122 2016-96 Solidago latissimifolia Elliott's Goldenrod C ST 123 2016-97 Symphyotrichum concolor ssp. concolor Eastern Silver American-aster SH SH 124 2016-98 Symphyotrichum laeve Smooth American-aster C C 125 Berberidaceae (Barberry Family) 126 2016-99 Caulophyllum thalictroides Blue Cohosh ST ST 127 Boraginaceae (Borage Family) 128 2016-100 Hackelia virginiana Virginia Stickseed C *

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG PREPARED BY Rhode Island Rare Plants 2016 3 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 129 2016-101 Onosmodium virginianum Eastern False Gromwell SH SH 130 Brassicaceae (Mustard Family) 131 2016-102 Boechera canadensis Sticklepod Rockcress C * 132 2016-103 Boechera laevigata Smooth Rockcress C * 133 2016-104 Boechera missouriensis Green Rockcress C C * 134 2016-105 Boechera stricta Canada Rockcress C C * 135 2016-106 Draba reptans Carolina Whitlow-mustard SH SH 136 Cactaceae (Cactus Family) 137 2016-107 Opuntia humifusa Eastern Prickly-pear SE SE 138 Campanulaceae (Bluebell Family) 139 2016-108 Lobelia dortmanna Water Lobelia C C 140 Caprifoliaceae (Honeysuckle Family) 141 2016-109 Linnaea borealis ssp. americana American Twinflower SH SH 142 2016-110 Lonicera dioica Wild Honeysuckle C C 143 2016-111 Lonicera sempervirens var. sempervirens Trumpet Honeysuckle C * 144 2016-112 Lonicera villosa Mountain Honeysuckle C C 145 2016-113 Triosteum aurantiacum var. aurantiacum Orange-fruited Horsegentian C C 146 2016-114 Triosteum perfoliatum Perfoliate-leaved Horsegentian C C 147 Caryophyllaceae (Pink Family) 148 2016-115 Honckenya peploides ssp. robusta Sea-side Sandwort C C 149 2016-116 Minuartia caroliniana Pine Barren Sandplant SH SH 150 2016-117 Minuartia glabra Appalachian Sandplant ST ST 151 2016-118 Minuartia michauxii var. michauxii Michaux’s Sandplant SE SE 152 2016-119 Paronychia canadensis Smooth Forked Whitlowwort C * 153 2016-120 Silene stellata Starry Campion SH SH 154 2016-121 Spergularia canadensis Canada Sand-spurry C C * 155 Celastraceae (Staff-tree Family) 156 2016-122 Celastrus scandens American Bittersweet SE 157 Cistaceae (Rock-rose Family) 158 2016-123 Crocanthemum dumosum Bushy Frostweed SE SE 159 2016-124 Crocanthemum propinquum Low Frostweed C C 160 2016-125 Hudsonia ericoides Pine-barren False Heather C ST 161 2016-126 Lechea minor Thyme-leaved Pinweed C C * 162 Convolvulaceae (Bindweed Family) 163 2016-127 Calystegia silvatica ssp. fraterniflora Short-stalked False Bindweed C * 164 2016-128 Cuscuta coryli Hazel Dodder SH SH 165 2016-129 Cuscuta gronovii var. latiflora Common Dodder C * 166 2016-130 Cuscuta indecora var. indecora Collared Dodder SE SE 167 2016-131 Cuscuta pentagona Bush-clover Dodder SH 168 2016-132 Cuscuta polygonorum Smartweed Dodder C * 169 Cornaceae (Dogwood Family) 170 2016-133 Chamaepericlymenum canadense Canada Dwarf-dogwood C 171 2016-134 Swida rugosa Round-leaved Dogwood C C 172 Cyperaceae (Sedge Family) 173 2016-135 Bolboschoenus maritimus ssp. paludosus Saltmarsh Tuber-bulrush C C 174 2016-136 Bolboschoenus novae-angliae New England Tuber-bulrush C * 175 2016-137 Carex alata Broad-winged Sedge C C * 176 2016-138 Carex albicans White-tinged Sedge C C * 177 2016-139 Carex albursina White Bear Sedge C * 178 2016-140 Carex aquatilis ssp. altior Water Sedge SE 179 2016-141 Carex bicknellii Bicknell’s Sedge C * 180 2016-142 Carex buxbaumii Brown Bog Sedge C C * 181 2016-143 Carex collinsii Collins' Sedge SE SE 182 2016-144 Carex cumulata Clustered Sedge C C 183 2016-145 Carex debilis var. debilis White-edged Sedge C * 184 2016-146 Carex exilis Meager Sedge C C 185 2016-147 Carex limosa Mud Sedge SH SH 186 2016-148 Carex meadii Mead’s Sedge SH 187 2016-149 Carex mitchelliana Mitchell's Sedge C C * 188 2016-150 Carex pedunculata ssp. pedunculata Long-stalked Sedge ST ST 189 2016-151 Carex polymorpha Variable Sedge SE SE 190 2016-152 Carex reznicekii Reznicek’s Sedge SH 191 2016-153 Carex schweinitzii Schweinitz's Sedge SH SH 192 2016-154 Carex sparganioides Bur-reed Sedge SH SH

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG PREPARED BY Rhode Island Rare Plants 2016 4 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 193 2016-155 Carex sterilis Dioecious Sedge SH SH 194 2016-156 Carex striata Walter's Sedge SE SE 195 2016-157 Carex styloflexa Bent Sedge C * 196 2016-158 Cyperus odoratus Rusty Flatsedge C C * 197 2016-159 Cyperus squarrosus Awned Flatsedge SE SE 198 2016-160 Eleocharis ambigens Ambiguous Spikesedge SH 199 2016-161 Eleocharis equisetoides Horsetail Spikesedge C C 200 2016-162 Eleocharis melanocarpa Black-fruited Spikesedge SE SE 201 2016-163 Eleocharis ovata Ovoid Spikesedge C * 202 2016-164 Eleocharis rostellata Beaked Spikesedge C C 203 2016-165 Eleocharis tricostata Three-angled Spikesedge SE SE 204 2016-166 Eleocharis tuberculosa Long-tubercled Spikesedge C * 205 2016-167 Eriophorum gracile Slender Cottonsedge ST ST 206 2016-168 Eriophorum vaginatum ssp. spissum Tussock Cottonsedge SH SH 207 2016-169 Eriophorum viridicarinatum Green-keeled Cottonsedge C C 208 2016-170 Fuirena pumila Dwarf Umbrella-sedge SE SE 209 2016-171 Lipocarpha micrantha Small-flowered Dwarf Bulrush ST ST 210 2016-172 Rhynchospora inundata Narrow-fruited Beaksedge SE SE 211 2016-173 Rhynchospora macrostachya Tall Beaksedge ST C 212 2016-174 Rhynchospora scirpoides Long-beaked Beaksedge SE SE 213 2016-175 Rhynchospora torreyana Torrey's Beaksedge SE SE 214 2016-176 Schoenoplectus etuberculatus Canby’s Bulrush SE SE 215 2016-177 Schoenoplectus smithii var. smithii Smith's Bulrush ST ST 216 2016-178 Schoenoplectus subterminalis Water Bulrush C ST 217 2016-179 Schoenoplectus torreyi Torrey's Bulrush C ST 218 2016-180 Scirpus georgianus Georgia Bulrush C * 219 2016-181 Scirpus longii Long's Woolsedge SE SE 220 2016-182 Scleria pauciflora var. caroliniana Few-flowered Nutsedge ST ST 221 2016-183 Scleria reticularis Netted Nutsedge ST ST 222 2016-184 Scleria triglomerata Whip Nutsedge ST ST 223 2016-185 Trichophorum alpinum Alpine Clubsedge SH SH 224 Dioscoreaceae (Yam Family) 225 2016-186 Dioscorea villosa Wild Yam C * 226 Droseraceae (Sundew Family) 227 2016-187 Drosera filiformis var. filiformis Thread-leaved Sundew SH SH 228 Elatinaceae (Waterwort Family) 229 2016-188 Elatine americana American Waterwort C C 230 Ericaceae (Heath Family) 231 2016-189 Andromeda polifolia var. glaucophylla Bog-rosemary SE SH 232 2016-190 Gaultheria hispidula Creeping Spicy-wintergreen ST SH 233 2016-191 Gaylussacia bigeloviana Dwarf Huckleberry C C 234 2016-192 Hypopitys lanuginosa Hairy Pine-sap C * 235 2016-193 Kalmia polifolia Bog American-laurel ST SE 236 2016-194 Lyonia mariana Piedmont Staggerbush SH 237 2016-195 Moneses uniflora One-flowered-shinleaf ST SE 238 2016-196 Orthilia secunda One-sided-shinleaf ST ST 239 2016-197 Pyrola chlorantha Green-flowered Shinleaf C C 240 2016-198 Rhododendron canadense Rhodora C 241 2016-199 Rhododendron periclymenoides Pink Azalea C C * 242 Euphorbiaceae (Spurge Family) 243 2016-200 Euphorbia nutans Eyebane Sandmat C * 244 Fabaceae (Bean Family) 245 2016-201 Crotalaria sagittalis Arrow-head Rattlebox ST SE 246 2016-202 Desmodium ciliare Hairy Small-leaved Ticktrefoil ST ST 247 2016-203 Desmodium cuspidatum Long-bracted Tick-trefoil C C * 248 2016-204 Desmodium glutinosum Large Tick-trefoil C * 249 2016-205 Desmodium sessilifolium Sessile-leaved Tick-trefoil ST ST 250 2016-206 Lupinus perennis ssp. perennis Sundial Lupine C C * 251 2016-207 Senna hebecarpa Northern Wild Senna SH SH 252 2016-208 Strophostyles umbellata Perennial Woolly Bean ST SE 253 2016-209 Tephrosia virginiana Wild Goat's-rue C C 254 Fagaceae (Oak Family) 255 2016-210 Quercus macrocarpa Burr Oak SH 256 2016-211 Quercus prinoides Dwarf Chestnut Oak C C

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG PREPARED BY Rhode Island Rare Plants 2016 5 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 257 2016-212 Quercus stellata Post Oak C C 258 Gentianaceae (Gentian Family) 259 2016-213 Bartonia iodandra Purple Screwstem C * 260 2016-214 Bartonia paniculata Twining Screwstem C * 261 2016-215 Gentiana andrewsii var. andrewsii Andrew’s Bottle Gentian SH SH 262 2016-216 Gentiana clausa Meadow Bottle Gentian C * 263 2016-217 Gentianopsis crinita Greater Fringed Gentian ST SE 264 2016-218 Sabatia kennedyana Plymouth Rose-gentian SE SE 265 2016-219 Sabatia stellaris Annual Rose-gentian ST ST 266 Geraniaceae (Geranium Family) 267 2016-220 Geranium bicknellii Northern Crane’s-bill ST SE 268 2016-221 Geranium robertianum Mountain Crane’s-bill C C 269 Grossulariaceae (Gooseberry Family) 270 2016-222 Ribes hirtellum Hairy-stemmed Gooseberry C C 271 Haemodoraceae (Bloodwort Family) 272 2016-223 Lachnanthes caroliniana Carolina Bloodroot ST ST 273 Haloragaceae (Water-milfoil Family) 274 2016-224 Myriophyllum alterniflorum Alternate-flowered Water-milfoil SH SH 275 2016-225 Myriophyllum pinnatum Cut-leaved Water-milfoil ST ST 276 2016-226 Proserpinaca pectinata Comb-leaved Mermaidweed C C * 277 Hypericaceae (St. John’s-wort Family) 278 2016-227 Hypericum adpressum Creeping St. John’s-wort ST ST 279 Iridaceae (Iris Family) 280 2016-228 Sisyrinchium fuscatum Coastal Plain Blue-eyed Grass SH SH 281 Juncaceae (Rush Family) 282 2016-229 Juncus anthelatus Wiegand’s Rush C C * 283 2016-230 Juncus debilis Weak Rush SE SH 284 2016-231 Luzula bulbosa Bulbous Wood-rush C * 285 Juncaginaceae (Arrow-grass Family) 286 2016-232 Triglochin palustre Marsh Arrow-grass SH SH 287 Lamiaceae (Mint Family) 288 2016-233 Clinopodium vulgare Wild Basil C * 289 2016-234 Hedeoma pulegioides American False Pennyroyal C C 290 2016-235 Lycopus rubellus Stalked Water-horehound C SH 291 2016-236 Monarda fistulosa var. mollis Wild Bee-balm SH C 292 2016-237 Physostegia virginiana ssp. virginiana Obedient False Dragonhead C C * 293 2016-238 Pycnanthemum incanum var. incanum Hoary Mountain-mint C * 294 2016-239 Stachys hispida Hispid Hedge-nettle C * 295 2016-240 Stachys hyssopifolia Hyssop-leaved Hedge-nettle ST ST 296 2016-241 Stachys pilosa var. arenicola Hairy Hedge-nettle SH 297 2016-242 Teucrium canadense var. occidentale American Germander C * 298 Lentibulariaceae (Bladderwort Family) 299 2016-243 Utricularia geminiscapa Mixed Bladderwort C C 300 2016-244 Utricularia gibba Creeping Bladderwort C C 301 2016-245 Utricularia intermedia Flat-leaved Bladderwort C C 302 2016-246 Utricularia minor Lesser Bladderwort SH SH 303 2016-247 Utricularia resupinata Resupinate Bladderwort C C 304 2016-248 Utricularia subulata Slender Bladderwort C C 305 Liliaceae (Lily Family) 306 2016-249 Clintonia borealis Yellow Blue-bead Lily C 307 2016-250 Lilium canadense Canada Lily ST ST 308 2016-251 Lilium philadelphicum Wood Lily C C 309 2016-252 Streptopus lanceolatus Lance-leaved Twistedstalk ST SH 310 Linaceae (Flax Family) 311 2016-253 Linum intercursum Sandplain Yellow Flax SE SH 312 2016-254 Linum medium ssp. texanum Common Yellow Flax C ST 313 2016-255 Linum sulcatum var. sulcatum Grooved Yellow Flax SH SH 314 Lythraceae (Loosestrife Family) 315 2016-256 Cuphea viscosissima Clammy Waxweed SH 316 2016-257 Lythrum alatum ssp. alatum Winged Loosestrife C * 317 2016-258 Rotala ramosior Toothcup SE ST 318 Melanthiaceae (Bunchflower Family) 319 2016-259 Trillium cernuum Nodding Wakerobin C 320 2016-260 Trillium erectum Red Wakerobin ST SE

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG PREPARED BY Rhode Island Rare Plants 2016 6 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 321 2016-261 Trillium undulatum Painted Wakerobin C 322 Menyanthaceae (Buckbean Family) 323 2016-262 Menyanthes trifoliata Buck-bean C 324 Myrsinaceae (Myrsine Family) 325 2016-263 Lysimachia maritima Sea-milkwort SH SH 326 Nartheciaceae (Narthesium Family) 327 2016-264 Aletris farinosa White Colic-root C C 328 Oleaceae (Ash Family) 329 2016-265 Fraxinus nigra Black Ash C C 330 Onagraceae (Evening-primrose Family) 331 2016-266 Circaea alpina ssp. alpina Small Enchanter's-nightshade C C 332 2016-267 Epilobium palustre Marsh Willow-herb ST SE 333 2016-268 Ludwigia sphaerocarpa Round-pod Water-primrose SE SE 334 2016-269 Oenothera fruticosa ssp. fruticosa Narrow-leaved Evening-primrose C * 335 Orchidaceae (Orchid Family) 336 2016-270 Arethusa bulbosa Dragon’s-mouth SE SE 337 2016-271 Calopogon tuberosus var. tuberosus Tuberous Grass-pink C C 338 2016-272 Coeloglossum viride Long-bracted Green Orchid ST ST 339 2016-273 Corallorhiza maculata var. maculata Spotted Coral-root C C 340 2016-274 Corallorhiza odontorhiza var. odontorhiza Fall Coral-root SE ST 341 2016-275 Corallorhiza trifida Early Coral-root C C 342 2016-276 Cypripedium parviflorum var. pubescens (Large) Yellow Lady’s-slipper SE SE 343 2016-277 Cypripedium parviflorum var. parviflorum (Small) Yellow Lady’s-slipper SH 344 2016-278 Galearis spectabilis Showy Orchid SE SH 345 2016-279 Goodyera tesselata Checkered Rattlesnakeplantain C 346 2016-280 Isotria medeoloides Small Whorled Pogonia FT SH 347 2016-281 Isotria verticillata Large Whorled Pogonia C 348 2016-282 Liparis liliifolia Lily-leaved Wide-lipped Orchid SE SH 349 2016-283 Liparis loeselii Loesel’s Wide-lipped Orchid ST SE 350 2016-284 Malaxis bayardii Bayard’s Adder’s-mouth SH SH 351 2016-285 Malaxis unifolia Green Adder's-mouth SE SE 352 2016-286 Neottia cordata Heart-leaved Twayblade SH SH 353 2016-287 Platanthera aquilonis North Wind Bog-orchid C * 354 2016-288 Platanthera blephariglottis White Fringed Bog-orchid ST ST 355 2016-289 Platanthera ciliaris Orange-fringed Bog-orchid SE SE 356 2016-290 Platanthera clavellata Little Club-spur Bog-orchid C 357 2016-291 Platanthera flava var. herbiola Northern Tubercled Bog-orchid SE ST 358 2016-292 Platanthera grandiflora Greater Purple-fringed Bog-orchid C 359 2016-293 Platanthera hookeri Hooker's Bog-orchid SH SH 360 2016-294 Platanthera huronensis Lake Huron Green Bog-orchid ST ST 361 2016-295 Platanthera lacera Green Fringed Bog-orchid C C 362 2016-296 Platanthera macrophylla Large-leaved Bog-orchid SH SH 363 2016-297 Platanthera orbiculata Round-leaved Bog-orchid SH SH 364 2016-298 Platanthera psycodes Lesser Purple Fringed Bog-orchid C C 365 2016-299 Spiranthes lucida Shining Ladies'-tresses SH SH 366 2016-300 Spiranthes ochroleuca Yellow Ladies'-tresses C * 367 2016-301 Spiranthes tuberosa Little Ladies'-tresses SE SE 368 2016-302 Spiranthes vernalis Spring Ladies'-tresses C C 369 Orobanchaceae (Broom-rape Family) 370 2016-303 Agalinis acuta Sandplain Agalinis FE FE 371 2016-304 Agalinis tenuifolia Slender-leaved Agalinis C C 372 2016-305 Aureolaria flava Smooth False Foxglove C 373 2016-306 Aureolaria pedicularia Fern-leaved False Foxglove C 374 2016-307 Aureolaria virginica Downy False Foxglove C 375 2016-308 Castilleja coccinea Scarlet Painted Cup SH SH 376 2016-309 Conopholis americana American Squaw-root C C 377 2016-310 Pedicularis canadensis var. canadensis Forest Lousewort C * 378 Oxalidaceae (Wood Sorrel Family) 379 2016-311 Oxalis violacea Violet Wood Sorrel SE SE 380 Papaveraceae (Poppy Family) 381 2016-312 Adlumia fungosa Allegheny-vine SE SE 382 2016-313 Capnoides sempervirens Pink Corydalis C C 383 2016-314 Sanguinaria canadensis Blood-root C C 384 Parnassiaceae (Grass-of-Parnassus Family)

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG PREPARED BY Rhode Island Rare Plants 2016 7 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 385 2016-315 Parnassia glauca Fen Grass-of-Parnassus SH SH 386 Penthoraceae (Ditch-stonecrop Family) 387 2016-316 Penthorum sedoides Ditch-stonecrop C C 388 Plantaginaceae (Plantain Family) 389 2016-317 Gratiola virginiana var. virginiana Round-fruited Hedge-hyssop C SH 390 2016-318 Penstemon digitalis Foxglove Beard-tongue ST ST 391 2016-319 Penstemon hirsutus Northeastern Beardtongue C C * 392 Poaceae (Grass Family) 393 2016-320 Aristida longespica var. geniculata Red Threeawn C C 394 2016-321 Aristida purpurascens var. purpurascens Arrow-feather Three-awn ST ST 395 2016-322 Dichantheliium acuminatum ssp. acuminatum Hairy Rosette-panicgrass C * 396 2016-323 Dichanthelium dichotomum ssp. mattamuskatenseForked Rosettepanicgrass SH SH 397 2016-324 Dichanthelium ovale ssp. villosissimum Stiff-leaved Rosettepanicgrass SH 398 2016-325 Dichanthelium scabriusculum Tall Swamp Rosettepanicgrass SH 399 2016-326 Dichanthelium scoparium Velvety Rosettepanicgrass SH 400 2016-327 Dichanthelium wrightianum Wright’s Rosettepanicgrass C C 401 2016-328 Elymus glabriflorus var. australis Southeastern Wild-rye SH 402 2016-329 Elymus histrix var. bigeloviana Eastern Bottle-brush Grass C * 403 2016-330 Elymus macgregorii Early Wild-rye C C * 404 2016-331 Elymus villosus var. villosus Downy Wild-rye C * 405 2016-332 Leptochloa fusca ssp. fascicularis Bearded Sprangletop SH SE 406 2016-333 Panicum amarum ssp. amarum Bitter Panicgrass C C * 407 2016-334 Paspalum setaceum var. psammophilum Slender Beadgrass C C 408 2016-335 Piptatherum pungens Short-awned Mountain-rice Grass C C * 409 2016-336 Poa saltuensis ssp. languida Weak Spear Grass C C * 410 2016-337 Puccinellia pumila Tundra Alkali Grass SH SH 411 2016-338 Setaria parviflora Knotroot Foxtail C C * 412 2016-339 Sorengia longifolia ssp. elongata Long-leaved Redtop-panicgrass C * 413 2016-340 Sorghastrum nutans Indian Grass C C 414 2016-341 Spartina cynosuroides Big Cordgrass C C 415 2016-342 Sphenopholis nitida Shiny Wedgescale C C 416 2016-343 Sphenopholis obtusata Prairie Wedgescale C C * 417 2016-344 Sphenopholis pensylvanica Swamp Wedgescale SH ST 418 2016-345 Sporobolus compositus var. compositus Rough Dropseed C C * 419 2016-346 Tripsacum dactyloides Eastern Gamagrass C C 420 2016-347 Zizania aquatica var. aquatica Southern Wild Rice C C * 421 2016-348 Zizania palustris var. palustris Northern Wild Rice C * 422 Podostemaceae (River-weed Family) 423 2016-349 Podostemum ceratophyllum Horn-leaved Riverweed C C 424 Polygalaceae (Milkwort Family) 425 2016-350 Polygala ambigua Alternate Milkwort SH SH 426 2016-351 Polygala cruciata ssp. aquilonia Drum-heads Milkwort C C 427 2016-352 Polygala verticillata Whorled Milkwort C C 428 Polygonaceae (Buckwheat Family) 429 2016-353 Persicaria puritanorum Puritan Smartweed SH 430 2016-354 Persicaria setacea Bristly Smartweed SH SH 431 2016-355 Polygonum erectum Upright Knotweed SH SH 432 2016-356 Polygonum glaucum Seaside Knotweed ST ST 433 2016-357 Polygonum tenue Slender Knotweed C * 434 Portulacaceae (Purslane Family) 435 2016-358 Claytonia virginica Virginia Spring-beauty SH SH 436 Potamogetonaceae (Pondweed Family) 437 2016-359 Potamogeton confervoides Alga-like Pondweed SH SH 438 2016-360 Potamogeton gemmiparus Budding Pondweed C SH 439 Primulaceae (Primrose Family) 440 2016-361 Hottonia inflata American Featherfoil C C 441 Rhamnaceae (Buckthorn Family) 442 2016-362 Ceonothus americanus New Jersey Redroot C 443 Ranunculaceae (Buttercup Family) 444 2016-363 Actaea rubra Red Baneberry C ST 445 2016-364 Anemone americana Blunt-lobed Hepatica C ST 446 2016-365 Anemone cylindrica Long-headed Windflower C C 447 2016-366 Anemone virginiana var. virginiana Tall Windflower SH SE 448 2016-367 Clematis occidentalis ssp. occidentalis Purple Virgin’s-bower SE SE

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG PREPARED BY Rhode Island Rare Plants 2016 8 of 8 RI NATURAL HISTORY SURVEY From R.W. Enser 2007 and Taxonomy follows FOR INFORMATIONAL PURPOSES ONLY RI Wildlife Action Plan 2015, Appendix 1d gobotany.newenglandwild.org

2016 2007 RI 2016 RI Seeking line # Species # Group Family Genus-species Epithet Status Status More Info 449 2016-368 Ranunculus allegheniensis Allegheny Crowfoot C C * 450 2016-369 Ranunculus ambigens Water-plantain Crowfoot C C * 451 2016-370 Ranunculus aquatilis var. diffusus White Water-crowfoot SE 452 2016-371 Ranunculus cymbalaria Seaside Crowfoot SH SH 453 2016-372 Ranunculus flabellaris Greater Yellow Water-crowfoot C C 454 2016-373 Ranunculus hispidus Hispid Crowfoot C C 455 2016-374 Ranunculus micranthus Small-flowered Crowfoot SE SE 456 2016-375 Ranunculus sceleratus var. scleratus Cursed Crowfoot C C 457 2016-376 Thalictrum dioicum Early Meadow-rue C * 458 2016-377 Thalictrum revolutum Waxy-leaved Meadow-rue SH SE 459 2016-378 Thalictrum thalictroides Anemone Meadow-rue C C 460 Rosaceae (Rose Family) 461 2016-379 Amelanchier nantucketensis Nantucket Shadbush SE 462 2016-380 Agrimonia pubescens Downy Agrimony SH SE 463 2016-381 Crataegus levis Smooth Hawthorn SH 464 2016-382 Crataegus intricata Entangles Hawthorn C * 465 2016-383 Crataegus jesupii Jesup's Hawthorn C * 466 2016-384 Crataegus populnea Poplar Hawthorn C * 467 2016-385 Geum laciniatum Floodplain Avens SH ST 468 2016-386 Prunus susquehanae Appalachian Sand Plum C C 469 2016-387 Rubus dalibarda Dewdrop SE SH 470 2016-388 Sanguisorba canadensis Canada Burnet SE SE 471 2016-389 Sibbaldiopsis tridentata Three-toothed Cinquefoil SH SH 472 Rubiaceae (Madder Family) 473 2016-390 Houstonia longifolia Long-leaved Bluets SH SH 474 Ruscaceae (Solomon's-seal Family) 475 2016-391 Maianthemum trifolium 3-leaved False Solomon's-seal SE 476 Sapindaceae (Soapberry Family) 477 2016-392 Acer pensylvanicum Striped Maple C C 478 2016-393 Acer spicatum Mountain Maple ST ST 479 Salicaceae (Willow Family) 480 2016-394 Populus heterophylla Swamp Poplar SE SE 481 2016-395 Salix pedicellaris Bog Willow SH SH 482 Saururaceae (Lizard's-tail Family) 483 2016-396 Saururus cernuus Lizard's-tail SE SE 484 Saxifragaceae (Saxifrage Family) 485 2016-397 Micranthes pensylvanica Swamp Small-flowered-saxifrage C C 486 2016-398 Micranthes virginiensis Early Small-flowered-saxifrage C C 487 2016-399 Tiarella cordifolia var. cordifolia Foam-flower SH 488 Scheuchzeriaceae (Pod-grass Family) 489 2016-400 Scheuchzeria palustris Pod-grass SE SE 490 Scrophulariaceae (Figwort Family) 491 2016-401 Limosella australis Atlantic Mudwort C C 378 2016-402 Scrophularia lanceolata Lance-leaved Figwort C C 379 2016-403 Scrophularia marilandica Eastern Figwort ST ST 380 Urticaceae (Nettle Family) 381 2016-404 Laportea canadensis Canada Wood-nettle C * 382 2016-405 Pilea fontana Lesser Clearweed C C * 383 Violaceae (Violet Family) 384 2016-406 Viola canadensis var. canadensis Canada White Violet SH SH 385 2016-407 Viola palmata Wood Violet ST ST 386 2016-408 Viola pubescens var. pubescens Yellow Forest Violet C C 387 2016-409 Viola pubescens var. scabriuscula Yellow Forest Violet C 388 2016-410 Viola rotundifolia Round-leaved Violet ST SE 389 2016-411 Viola subsinuata Early Blue Violet SH SE 390 Viscaceae (Christmas-mistletoe Family) 391 2016-412 Arceuthobium pusillum Dwarf Mistletoe SE SH 392 Xyridaceae (Yellow-eyed-grass Family) 393 2016-413 Xyris montana Northern Yellow-eyed-grass ST ST 394 2016-414 Xyris smalliana Small's Yellow-eyed-grass C

Send comments, suggestions, and corrections to: [email protected], re:rare plant list correct: 1/24/2017 DWG