Hydrilla
1 species
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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
Growth Duration: Perennial
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
Growth Duration: Perennial
