Panicum
panic grass, witchgrass
6 species
4 subspecies and varieties
4 subspecies and varieties
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Panicum capillare – witchgrass
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Moist and irrigated areas, along streams and around ponds.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Moist and irrigated areas, along streams and around ponds.
Origin: Native
Flowers: June-September
Growth Duration: Annual
• ssp. capillare – common panicgrass, witchgrass
Panicum dichotomiflorum – fall panicum
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlanitc Coast.
Habitat: Disturbed, often wet sites including stream banks and roadsides.
Origin: Introduced from eastern and central Washington
Flowers: May-September
Growth Duration: Annual, Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlanitc Coast.
Habitat: Disturbed, often wet sites including stream banks and roadsides.
Origin: Introduced from eastern and central Washington
Flowers: May-September
Growth Duration: Annual, Perennial
• ssp. dichotomiflorum – fall panicum, western witchgrass
Panicum miliaceum – millet
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Abandoned fields, roadsides, waste ground.
Origin: Introduced from Asia
Flowers: July-September
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Abandoned fields, roadsides, waste ground.
Origin: Introduced from Asia
Flowers: July-September
Growth Duration: Annual
• ssp. miliaceum – broomcorn, hog millet, panic millet, proso millet
• ssp. ruderale – broomcorn, hog millet, panic millet
Panicum virgata
Origin: Introduced from central and eastern North America
Growth Duration: Perennial
Origin: Introduced from central and eastern North America
Growth Duration: Perennial
Panicum virgatum
Distribution: Occurring east of the Cascades crest in Washington; occurring in scattered locations near Portland, OR and Boise, ID, otherwise east of the Rocky Mountains in central and eastern North America, where native.
Habitat: Roadsides, fields, and other disturbed areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; occurring in scattered locations near Portland, OR and Boise, ID, otherwise east of the Rocky Mountains in central and eastern North America, where native.
Habitat: Roadsides, fields, and other disturbed areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
