Pontederiaceae
Pickerelweed Family
3 genera
3 species
3 species
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Eichhornia crassipes – water hyacinth
Distribution: Occurring west of the Cascades crest in Washington; Washington to California, east along the southern U.S. to the Atlantic Coast.
Habitat: Ponds, ditches, canals.
Origin: Introduced from tropical America
Flowers: April-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Washington to California, east along the southern U.S. to the Atlantic Coast.
Habitat: Ponds, ditches, canals.
Origin: Introduced from tropical America
Flowers: April-September
Growth Duration: Perennial
Heteranthera dubia – grassleaf mud-plantain, water stargrass, yellow stargrass
Distribution: Occurring chiefly east of the Cascades crest along major rivers in Washington, however particularly common and rather invasives in lower Yakima River; British Columbia to California, widespread in eastern North America.
Habitat: River backwaters, slow-moving rivers, quiet streams, ponds and lakes.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest along major rivers in Washington, however particularly common and rather invasives in lower Yakima River; British Columbia to California, widespread in eastern North America.
Habitat: River backwaters, slow-moving rivers, quiet streams, ponds and lakes.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Pontederia cordata – pickerel-weed
Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia to Oregon; native to central and eastern and North America.
Habitat: Lakeshores and pond margins, where often escaping from cultivation.
Origin: Introduced from central and eastern North America
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia to Oregon; native to central and eastern and North America.
Habitat: Lakeshores and pond margins, where often escaping from cultivation.
Origin: Introduced from central and eastern North America
Flowers: July-September
Growth Duration: Perennial
