Poaceae

Idaho bentgrass

Agrostis idahoensis Nash

Family: Poaceae
Genus: Agrostis

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Idaho bentgrass: The inflorescences are highly branched in and upward direction and they are not the unit of dispersal, in contrast to those of Agrostis scabra, which is a very — Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons

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Common names

By language (1)

English: Idaho bentgrass

Synonyms

Agrostis borealis var. recta (Nash) B.Boivin
Agrostis tenuiculmis Nash
Agrostis tenuiculmis var. recta Nash
Agrostis tenuis Vasey
Agrostis tenuis var. erecta Vasey ex Nash

Flowers

Flower colour: yellow (USDA PLANTS Database)

Characteristics

Growth habit: Graminoid
Lifespan: Perennial
In the US and Canada: Alaska: native, Canada: native, Lower 48 states: native

Photos

Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons

More in Agrostis

Creeping bentAgrostis stoloniferaPoaceae
RedtopAgrostis giganteaPoaceae
Colonial bentgrassAgrostis capillarisPoaceae
Velvet bentAgrostis caninaPoaceae
Brown bentgrassAgrostis vinealisPoaceae
BentgrassAgrostis castellanaPoaceae
Rough bentgrassAgrostis scabraPoaceae
Agrostis rupestrisPoaceae
Clavate bentgrassAgrostis clavataPoaceae
Northern bentgrassAgrostis mertensiiPoaceae
Agrostis nebulosaPoaceae
Spike bentgrassAgrostis exarataPoaceae

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.