Taxon  Report   131    
Agoseris grandiflora  (Nutt.) Greene
Bigflower agoseris,  California dandelion, Giant mountain dandelion, Large flowered agoseris
Agoseris grandiflora
© 2013 Arcangelo Wessells
Photos from
CalPhotos / Calflora
Agoseris grandiflora
© 2018 Brian Charles
Agoseris grandiflora
© 2008 Zoya Akulova
Agoseris grandiflora, a dicot, is a perennial herb that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Agoseris grandiflora
© 2018 Mary Conway
Genus: Agoseris
Subspecies and Varieties:
Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Foothill Woodland, Chaparral, Valley Grassland, (many plant communities)
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Agoseris laciniata
PLANTS: Agoseris plebeja
PLANTS: Troximon grandiflorum
More information about  Agoseris grandiflora
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
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 18, 2019).