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Cypripedium parviflorum var. pubescens (Willd.) Knight
Greater yellow lady's slipper, Large yellow lady's slipper
USDA Symbol: CYPAP3
USDA Native Status: Native to U.S.
Borne terminally on a leafy stalk are 1 or 2 fragrant flowers with an inflated, yellow, pouch-shaped lip petal.
The Yellow Ladys Slippers form a highly variable population, and currently the large and small forms are regarded as separate species. The Small or Lesser Yellow Ladys Slipper (C. parviflorum), has very fragrant flowers, a lip petal only 3/4-1 1/2 (2-3.8 cm) long, brownish lateral petals, and a height of about 22 (55 cm). It is found mostly in limestone wetlands, only rarely as far south as the Appalachian mountains. Cherokee people made a preparation from the roots of these plants that was drunk as a treatment for worms.
Bloom InformationBloom Time: Apr , May , Jun , Jul , Aug
AL , AR , AZ , CA , CT , DC , DE , GA , IA , ID , IL , IN , KS , KY , MA , MD , ME , MI , MN , MO , MS , NC , ND , NH , NJ , NM , NY , OH , OK , PA , RI , SC , SD , TN , TX , VA , VT , WA , WI , WV , WY Canada: BC
, PE Native Distribution:
Newfoundland, south to mountains of Georgia; most of midwest, Great Lakes, and Plains states; in south west to Arizona and California, north to Pacific Northwest. Native Habitat:
Bogs and swamps, rich woods. USDA Native Status: L48(N), AK(N), CAN(N),
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Record Modified: 2012-09-25
Research By: TWC Staff