cypripedium acaule(n = noun.plant) moccasin flower, nerveroot - once common rose pink woodland orchid of eastern North America; Array
is a kind of ladies' slipper, lady's slipper, lady-slipper, slipper orchid
cypripedium, cypripedium album, cypripedium arietinum, cypripedium calceolus, cypripedium calceolus pubescens, cypripedium californicum, cypripedium fasciculatum, cypripedium montanum, cypripedium parviflorum, cypripedium reginae, genus cypripedium