the buds and flowers of calanthe argunteostraata

yellow wings wildflower wide white undefined truncated tips tip tangs stamens spoon smaller shrub short shaped shape sepals science scape round root pseudobulbs produce popular plant pillar petals petal period perennial ovate orchidaceae orchid obvious nature medicine may lips lily like leaves leaf lanceolate knowledge inverted higher herb hairless green genus garden fused flowers flowering flower family elliptical crassulaceae core conical clustered cheng cap calanthe botany blossom biology purple pink lilac eye