Advanced Search

Beck Water-marigold is an aquatic perennial herb with lower stems that are submerged and upper portions usually emergent. Submerged leaves are opposite, sessile, and divided into numerous thread-like segments. The lance-shaped, emergent leaves are sessile, opposite, and 2-4 cm long with sharply toothed margins. Solitary flower heads are borne on the ends of the emergent stems. Each head has 2 se...