Natural Heritage Program List of Rare Plant Species - Rawlings ...

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Scientific Name Common Name Status Rank Province: Habitat (Counties of occurrence) N.C. U.S. N.C. Global Platanthera grandiflora Large Purple-fringed Orchid SR-P - S2 G5 M: bogs, seeps, grassy balds, high elevation moist forests and banks (Alleghany, Ashe+, Avery, Buncombe, Clay, Haywood*, Macon, McDowell, Swain, Transylvania*, Watauga, Yancey) Platanthera integra Yellow Fringeless Orchid T - S2 G3G4 CMP: savannas (Brunswick, Carteret, Cherokee*, Columbus, Craven, Forsyth*, Henderson+, Onslow*, Pamlico+, Pender, Robeson+, Rowan*) Platanthera integrilabia White Fringeless Orchid E C SX G2G3 M: bo gs (Chero kee*, Henderson*) Platanthera nivea Snowy Orchid T - S1 G5 C: wet savannas (Beaufort*, Bladen*, Brunswick, Columbus*, Craven, Dare*, Hoke*, New Hanover*, Pender, Robeson*) Platanthera peramoena Purple Fringeless Orchid SR-P - S2 G5 MP: bogs, forests (Buncombe+, Burke*, Caldwell*, Clay*, Durham, Forsyth+, Guilford, Haywood*, Henderson+, Jackson*, Macon*, Mi tchell*, Orange, Swain*, Transylvania, Warren*, Watauga, Yancey*) Poa paludigena Bog Bluegrass E FSC S1 G3 M: bo gs (Ashe, Avery, Watauga*) Poa palustris Swamp Bluegrass SR-P - S1 G5 M: spruce-fir forests, grassy balds (Avery, Haywood*, Henderson*, Macon+, Mitchell, Polk*, Swain*, Yancey*) Poa saltuensis A Bluegrass SR-P - S1 G5 M: olivine barrens (Clay, Haywood) Polemonium reptans Jacob's-ladder SR-P - S1 G5 PM: rich woods Polemonium reptans var. reptans Jacob's Ladder SR-P - S1 G5T5 PM: moist, nutrient-rich forests such as bottomlands and rich slop es (Rockingham*, Stokes*, Watauga*) Polygala grandiflora Showy Milkwort SR-P - S2 G5? SC: sandhills (Hoke, Richmond, Scotland) Polygala hookeri Hooker's Milkwort SR-T - S2S3 G3 C: savannas (Brunswick, Carteret, Columbus*, Craven, New Hanover, Onslow, Pender) Polygala nana Dwarf Milkwort SR-D - SH G5 M: habitat in North Carolina not known Polygala senega Seneca Snakeroot SR-D - S2 G4G5 MP: woodlands and in thin soil around outcrops, usually over mafic or calcareous rocks 46
Scientific Name Common Name Status Rank Province: Habitat (Counties of occurrence) N.C. U.S. N.C. Global Polygonella articulata Coast Jointweed SR-P - SX G5 C: sandhills (Gates*) Polygonum glaucum Seabeach Knotweed SR-T - S1 G3 T: ocean and sound beaches (Beaufort*, Brunswick, Carteret, Dare*, Hyde*, New Hanover*) Ponthieva racemosa Shadow-witch SR-P - S2 G4G5 C: blackwater forests and swamps, especially over marl (Beaufort*, Brunswick, Carteret, Craven, Jones, Onslow, Pender) Portulaca smallii Small's Portulaca T - S2 G3 P: granite flatrocks and diabase glades (Cabarrus, Forsyth*, Franklin, Granville, Rowan, Wake) Potamogeton amplifolius Largeleaf Pondweed SR-D - SH G5 C: submersed in blackwater streams (Craven*) Potamogeton confervoides Conferva Pondweed SR-D - S2 G4 SC: beaverponds and old millponds on blackwater creeks (Cumberland, Gates+, Harnett, Hoke, Moore, Richmond, Scotland) Potamogeton illinoensis Illinois Pondweed SR-D - S1 G5 C: alkaline waters of streams, rivers, lakes, and ponds (Brunswick*, Dare*) Potamogeton natans Floating Pondweed SR-D - SH G5 M: lakes and artificial impoundments (Buncombe*) Potamogeton nodosus American Pondweed SR-D - SH G5 CMP: ponds and streams with moderate to high PH Prenanthes alba White Rattlesnakeroot SR-P - S2? G5 M: hardwood forests (Halifax, Haywood*, Henderson*, McDowell*, Mit chell*, Northampton, Transylvania*) Prunus pumila var. susquehanae Susquehanna Cherry SR-P - SH G5T4 MP: rocky forests (Durh am*) Pseudognaphalium helleri Heller's Rabbit-Tobacco SR-P - S3 G3G4 PS: dry woodlands, openings, and glades, especially over mafic rocks (Anson*, Cabarrus, Davidson, Forsyth*, Franklin*, Granville, Guilford*, Halifax*, Hoke, Mecklenburg, Montgomery, Orange*, Person*, Ro wan*, Scotland*, Union, Wake) Pseudognaphalium micradenium Small Rabbit-Tobacco SR-T - S1 G3? P: dry woodlands (Caswell, Granville*, Person, St okes*, Vance) Psilotum nudum Whiskfern SR-D - S1 G5 C: acid swamp (Chowan) 47
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Page 8 and 9: target conservation activity most e
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Page 12 and 13: G4 101-1000 Apparently Secure - Unc
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Watch Category 6 ( regionally rare)
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PLANT TAXA ENDEMIC TO NORTH CAROLIN
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Chamaecrista nictitans var aspera -
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Solidago hispida - M (calcareous wo
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Paspalum vaginatum W3 SR-P S1S2 G5
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NAME CHANGES SINCE 2004 RARE LIST P
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Area of apparently suitable habitat
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Abies fraseri ..................4,
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Corallorhiza maculata ............8
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Ilex longipes ....................3
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Porpidia macrocarpa ............111
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Trientalis borealis ...............
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Natural Heritage Program List of Rare Plant Species - Rawlings ...

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