Taxon  Report   145    
Agrostis gigantea  Roth
Creeping bentgras,  Giant bentgrass, Redtop
Agrostis gigantea
© 2011 Barry Breckling
Photos from
CalPhotos / Calflora
Agrostis gigantea
© 2005 Steve Matson
Agrostis gigantea, a monocot, is a perennial grass that is not native to California; it was introduced from elsewhere and naturalized in the wild.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Agrostis gigantea
© 2011 Barry Breckling
Family: POACEAE  
Genus: Agrostis
Communities: escaped cultivar, wetland-riparian

Arid West: Occurs usually in wetlands, occasionally in non wetlands
Mountains, Valleys and Coast: Equally likely to occur in wetlands and non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Agrostis gigantea var. dispar
PLANTS: Agrostis nigra
PLANTS: Agrostis stolonifera ssp. gigantea
. . .
More information about  Agrostis gigantea
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 21, 2019).