Nearctica - Eastern Wildflowers - Apiaceae - Umbellate Water Pennywort (Hydrocotyle umbellata)

Umbellate Water Pennywort

(Hydrocotyle umbellata)

Color Photograph: Copyright Nearctica.com, Inc.

Line Drawing: Britton, N.L., and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada, Second Edition.

Hydrocotyle americana

American Wattern Pennywort has the flowers flush with the stem, not on long flower stalks, and the leaf stalk is attached to the base of a cleft in the leaf.

Umbellate Water Pennywort (Hydrocotyle umbellata)

Identification: Plant aquatic consisting of round leaves attached to a long stem floating on the water. Flowers white arranged in small, globular clusters attached by a long flower stalk to a horizontal runner. Seeds round with lateral ribs. Leaves round, slightly lobed, leaf stalk attached to middle of leaf (peltate).

Distribution: New England to Minnesota and southward into South America. Also along the Pacific Coast.

Habitat: Umbellate Water Pennywort is a species of swamps, marshes, and other aquatic habitats.

Flowering Period: June to September.

Umbellate Water Pennywort (Hydrocotyle umbellata)

Similar Species:

There are several species of Hydrocotyle in eastern North America. One other species treated in Nearctica.

American Water Pennywort (Hydrocotyle americana)

Similar Species