Taxon  Report   4306    
Hyparrhenia hirta  (L.) Stapf
Thatching grass
Hyparrhenia hirta
© 2008 Steve Matson
Photos from
CalPhotos / Calflora
Hyparrhenia hirta, a monocot, is a perennial grass that is not native to California; it was introduced from elsewhere and naturalized in the wild. There is a high risk of this plant becoming invasive in California according to Cal-IPC.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Hyparrhenia hirta
© 2008 Steve Matson
Family: POACEAE  
Genus: Hyparrhenia
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Andropogon hirtus
More information about  Hyparrhenia hirta
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 22, 2019).