Stout, 5-10 dm; herbage glabrous; lower lvs long-petioled, 1-3 dm, the uppermost much reduced, with short, broad, sheathing petioles; lfls ovate, 4-7 cm, acute or obtuse, sharply and irregularly serrate, especially above the middle; umbels few, long-pedunculate; rays 20+, 3-10 cm, ascending, puberulent; fr elliptic or oblong, 5-9 mm, the ribs all very prominent, corky, acute but not winged, contiguous at base, the lateral ones somewhat the wider; oil-tubes numerous; seed loose in the pericarp. Beaches and rocks along the coast; L.I. to Lab.; margin of the Pacific Basin from Calif. to n. Asia. June-Aug. (Coelopleurum actaeifolium)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.