| Noun | 1. | clustered lady's slipper - clusters of several short stems each having 2 broad leaves and 2-4 drooping brownish to greenish flowers with pouches mottled with purple; British Columbia to central California and northern Colorado ladies' slipper, lady's slipper, lady-slipper, slipper orchid - any of several chiefly American wildflowers having an inflated pouchlike lip; difficult or impossible to cultivate in the garden |