Cypripedium calceolus, C. parviflorum var. parviflorum, C. parviflorum var. pubescens, C. pubescens, C. calceolus var. pubescens, Yellow Lady's Slipper, Small Yellow Lady's Slipper, Large Yellow Lady's Slipper.

Cypripedium calceolus, C. parviflorum var. parviclorum, C. parviflorum var. pubescens, C. pubescens, Yellow Lady's Slipper, including large yellow lady's slipper and small yellow lady's slipper here (see image titles), is a highly variable complex of Cypripedium which defy botanical agreement by taxonomists, while awaiting geneticists for nomenclatural clarity. Basically all yellow lady's slippers were sold in the botanical trade in ninteenth century America as a substitute for valerian. Root also dug for the horticulture trade. Declining habitat and genetic variation, dictate that yellow lady's slippers simply be left alone in their wild habitats. Enjoy the view, but don't touch. Will cause contact dermatitis (like poison-ivy) in sensitive individuals.

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