– purple pampas grass
Distribution: Occurring in lowland western Washington; Washington to California.
Habitat: Disturbed, open areas at low elevation
Origin: Introduced from northern South America
– pampas 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