Poaceae
Spike bentgrass
Agrostis exarata
- Family
- Poaceae
- Genus
- Agrostis
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Common names
By language (3)
- English
- Spike bentgrass
- Finnish
- Alaskanrölli
- Swedish
- Dikesven
Synonyms
- Agrostis aenea (Trin.) Trin.
- Agrostis alaskana Hultén
- Agrostis alaskana var. breviflora Hultén
- Agrostis albicans Buckley
- Agrostis alopecuroides Link ex Kunth
- Agrostis alopecuroides (Buckley) A.Gray
- Agrostis ampla Hitchc.
- Agrostis ampla f. monolepis (Torr.) Beetle
- Agrostis asperifolia Trin.
- Agrostis berlandieri E.Fourn.
- Agrostis canina var. aenea Trin.
- Agrostis canina var. melaleuca Trin.
- Agrostis drummondii Torr. ex Hook.f.
- Agrostis durangensis Mez
- Agrostis exarata f. asperifolia (Trin.) Vasey
- Agrostis exarata subsp. exarata
- Agrostis exarata subsp. minor (Hook.) C.L.Hitchc.
- Agrostis exarata var. aenea (Trin.) Griseb.
- Agrostis exarata var. ampla (Hitchc.) Hitchc.
- Agrostis exarata var. asperifolia Vasey
- Agrostis exarata var. exarata
- Agrostis exarata var. minor Hook.
- Agrostis exarata var. monolepis (Torr.) Hitchc.
- Agrostis exarata var. pacifica Vasey
- Agrostis exarata var. purpurascens Hultén
- Agrostis filiculmis M.E.Jones
- Agrostis grandis Trin.
- Agrostis inflata Scribn.
- Agrostis longiligula Hitchc.
- Agrostis longiligula var. australis Howell
- Agrostis longiligula var. longiligula
- Agrostis melaleuca (Trin.) Hitchc.
- Agrostis microphylla var. intermedia Beetle
- Agrostis microphylla var. major Vasey
- Agrostis scouleri Trin.
- Deyeuxia alopecuroides A.Gray
- Polypogon alopecuroides Buckley
- Polypogon monspeliensis var. monolepis Torr.
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: Mike Palmer, CC0, from iNaturalist 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: David Rankin, CC BY 4.0, from iNaturalist 
Photo: Dave Miller, CC0, from iNaturalist 
Photo: Matt Berger, CC BY 4.0, from iNaturalist 
Photo: B. Hughes, CC BY-SA 4.0, from iNaturalist 
Photo: David Anderson, CC BY 4.0, from iNaturalist 
Photo: Jeff Lesh, CC BY-SA 4.0, from iNaturalist 
Photo: D Defreese, CC BY 4.0, from iNaturalist
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
- Agrostis pourretiiPoaceae
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.