Calflora, a 501c3 non-profit
Distribution by County   3966    
Grindelia squarrosa  (Pursh) Dunal  var. serrulata  (Rydb.) Steyerm.
Curlycup gumweed,   Great plains resinweed
Grindelia squarrosa var. serrulata is a perennial herb that is not native to California.

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]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 12/02/2022).