pampas grass
2 species
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Cortaderia jubatapurple pampas grass
Distribution: Occurring in lowland western Washington; Washington to California.
Habitat: Disturbed, open areas at low elevation
Origin: Introduced from northern South America
Flowers: June-September
Cortaderia selloanapampas grass
Distribution: Occurring in several counties west of the Cascades crest; Washington to California, in scattered states eastward to Atlantic Coast.
Habitat: Disturbed, open soil of wastelots, abandoned fields, and roadsides at low elevations, often near coast.
Origin: Introduced from central South America
Flowers: May-July