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DescriptionErect, annual, aromatic herb (in ours). Latex 0. Stipules present. Leaves alternate or opposite, digitately 3-7(-11)-foliolate (in ours), the leaflets with a serrate margin. Plant dioecious. Male inflorescences laxly cymose-paniculate; perianth 5-lobed, 1-seriate. Female inflorescences short, compact; flowers subtended by a bract and an enveloping bracteole. Ovary superior. Fruit an achene.