Page author: David Giblin
Hydrilla verticillata
hydrilla, water-thyme

Distribution: Occurring west of the Cascades crest in Washington, where known only from King County; Washington, California, and in the southern and eastern U.S.

Habitat: Ponds, lakes, and slow-moving streams at low elevation.

Origin: Introduced from Eurasia

Conservation Status: Not of concern


[none provided]

Accepted Name:
Hydrilla verticillata (L. f.) Royle
Publication: Illustrations of the Botany ... of the Himalayan Mountains ... 1: 376. 1839.

Synonyms & Misapplications:
Serpicula verticillata L. f.
Additional Resources:

PNW Herbaria: Specimen records of Hydrilla verticillata in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Hydrilla verticillata checklist entry.

E-Flora BC: Hydrilla verticillata atlas page.

CalPhotos: Hydrilla verticillata photos.

USDA Plants: Hydrilla verticillata information.

3 photographs:
Group by