Calflora
Taxon  Report   143    
Agrostis exarata  Trin.
Spike bentgrass,  Spike redtop
Agrostis exarata
© 2008 Keir Morse
Photos from
CalPhotos / Calflora
Agrostis exarata
© 2008 Keir Morse
Agrostis exarata
© 2009 Zoya Akulova
Agrostis exarata, a monocot, is a perennial grass that is native to California, 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
Communities: 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: Occurs usually in wetlands, occasionally in non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Agrostis aenea
PLANTS: Agrostis melaleuca
PLANTS: Agrostis longiligula
. . .
More information about  Agrostis exarata
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (AGEX)

Search the International Plants Names Index

Search efloras.org (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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available: https://www.calflora.org/   (Accessed: Nov 18, 2018).

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