Agrostis
bentgrass
14 species
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Common name
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Agrostis caninavelvet bentgrass
Origin: Native
Agrostis capillariscolonial bent
Distribution: Occurring on both sides of the Cascades crest in Washington; widely introduced throughout North America.
Habitat: Open, disturbed areas often at low elevations.
Origin: Introduced
Flowers: June-August
Agrostis castellanaHighland bent, dryland browntop
Origin: Introduced
Agrostis exarataspiked bent
Distribution: Widely distributed throughout Washington; Alaska south to California, east to Alberta, Nebraska and Texas.
Habitat: Moist areas, from near sea level to mid-elevations in the mountains.
Origin: Native
Flowers: June-September
Agrostis giganteablack bent
Distribution: Occurring throughout Washington; found in nearly all parts of North America.
Habitat: Disturbed sites, roadsides, edge of agricultural fields, mostly at low elevations.
Origin: Introduced
Flowers: June-September
Agrostis idahoensisIdaho bent
Origin: Native
Flowers: July - August
Agrostis mertensiinorthern bent
Origin: Native
Flowers: July - August
Agrostis microphyllasmall-leaf bent
Origin: Native
Flowers: May - June
Agrostis ×murbeckii
Origin: Introduced
Agrostis oregonensisOregon bent
Origin: Native
Flowers: July - August
Agrostis pallensseashore bent
Distribution: Near the coast, Grays Harbor County, Washington south to San Francisco, California.
Habitat: Coastal sand dunes and immediately adjacent woods.
Origin: Native
Flowers: Late June - August
Agrostis scabrarough bent
Origin: Native
Flowers: June - August
Agrostis stoloniferaspreading bent
Distribution: Widespread throughout Washington; Alaska south to California; also in Idaho, Utah and Colorado.
Habitat: Wet, disturbed areas that include streambanks, flooded fields, and ditches at low to moderate elevations.
Origin: Introduced?
Flowers: June-September
Agrostis variabilisalpine bent
Origin: Native
Flowers: Late July - September