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(winter aconite), a genus of plants of the family Ranunculaceae. The low perennial herbs have a tuberous rhizome. The leaves are palmately dissected. The basal leaves are petiolate; the cauline leaves are sessile and arranged in whorls of three at the top of the stem. The large yellow flowers are solitary and have six bracts. There are seven or eight species, found in the temperate zone of Eurasia. The USSR has three or four species, in Middle Asia, southern Siberia, and the Far East. E. longistipitata grows on rocky slopes in Middle Asia. E. hyemalis and several other species are early-flowering spring ornamentals.