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
lady's slipper: any of several chiefly American wildflowers having an inflated pouchlike lip; difficult or impossible to cultivate in the garden
fetoscopy: prenatal diagnosis that allows direct observation of a fetus in the uterus and the withdrawal of fetal blood