Spadix adherent to the spathe on one side of the base, bearing pistillate fls on the free side; staminate fls separated from the pistillate by a swollen ring; upper part of the spadix naked; ovary with a single ovule; small stoloniferous herbs, perennial from corms; lvs compound. 7, China and Japan.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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