Mo•ses-in-the-cra•dle(mō′ziz in ᵺə krā′dəl, mō′zis),USA pronunciationn.a plant, Rhoeo spathacea, native to the West Indies and Central America, having leaves with purple undersides and white flowers enclosed in a boat-shaped envelope formed by two bracts. Also called Mo•ses-on-a-raft(mō′ziz on ə raft′, -räft′, -ôn-, mō′zis-),USA pronunciationboat lily, oyster plant.