Cypripedium pubescens Willd.
Engl.: greater yellow lady's slipper, American valerian, ladies'-slipper, large yellow lady's slipper, nerve-root, Noah's ark, yellow ladies'-slipper, yellow moccasin-flower.
Bot. syn.: Cypripedium parviflorum Salisb. var. pubescens (Willd.) O. W. Knight.
Classic texts: King's 1898.
Classic texts: The American Eclectic Dispensatory, by John King, 1854.
Classic texts: Rafinesque 1828-1830.
Classic texts: King's 1898.
Classic texts: King's 1898.
Classic texts: Felter 1922.
Classic texts: Madaus 1938.
Classic texts: Journals: TNEMA 1882-1883.
Classic texts: USDisp 1918.
Classic texts: Scudder 1870.
Classic texts: Sayre 1917.
Classic texts: Petersen 1905.
Classic texts: HistVD, 1911.
Classic texts: King's 1898.
Classic texts: King's 1898.
Classic texts: Harding 1936.
Classic texts: Ellingwood 1919.
Classic texts: Cook 1869.
Classic texts: Boericke 1901.
Classic texts: Boericke 1901.
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