Taxon  Report   143 
Agrostis exarata  Trin.
Spike bentgrass,  Spike redtop

Agrostis exarata
© 2005 Steve Matson
Agrostis exarata
© 2008 Keir Morse
Agrostis exarata, a monocot, is a perennial grass that is native to California and is also found elsewhere in North America and beyond.

 Interactive Distribution Map 

 Observation Hotline 
 (observation details + photos)

point, line, or polygon

 Plant Characteristics
 and Associations

Bloom Period
Agrostis exarata
© 2008 Keir Morse
Family: POACEAE  
Genus: Agrostis
North Coastal Coniferous Forest, Closed-cone Pine Forest, Redwood Forest, Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Mixed Evergreen Forest, Foothill Woodland, Chaparral, Valley Grassland, (many plant communities), wetland-riparian
Wetlands:Usually occurs in wetlands, but occasionally found in non wetlands [U.S. Fish & Wildlife Service.]
Distribution by County 

Add an Observation of  Agrostis exarata

Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Agrostis aenea
PLANTS: Agrostis melaleuca
PLANTS: Agrostis longiligula
PLANTS: Agrostis exarata var. purpurascens
PLANTS: Agrostis exarata var. pacifica
PLANTS: Agrostis microphylla var. major
PLANTS: Agrostis exarata var. minor
PLANTS: Agrostis exarata ssp. minor
PLANTS: Agrostis asperifolia
PLANTS: Agrostis alaskana
TJM2 + PLANTS: Agrostis longiligula var. australis
TJM2 + PLANTS: Agrostis ampla
TJM2 + PLANTS: Agrostis exarata var. monolepis
 More information about  Agrostis exarata
Location Suitability

Nursery / seed vendor availability from CNPLX
This plant is available commercially.


Photos on CalPhotos / Google Images

website references on Google

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation. on the
International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2015. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Nov 30, 2015).

The information on this page comes from diverse sources. None of the links are sponsored.

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