Cypripedium parviflorum var. pubescens O.W.Knight, 1906 Dataset International Plant Names Index Rank VARIETY Published in Rhodora 8: 93. 1906 Classification kingdom Plantae family Orchidaceae genus Cypripedium species Cypripedium parviflorum Name Homonyms Cypripedium parviflorum var. pubescens O.W.Knight, 1906