Calflora, a 501c3 non-profit
Distribution by County   8370    
Xylorhiza cognata  (H. M. Hall) T. J. Watson
Mecca aster,   Mecca woodyaster
Xylorhiza cognata is a perennial herb that is native to California, and endemic (limited) to California.
also called Machaeranthera cognata
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
Record Count by County

Inyo: 2 Riverside: 171

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 05/27/2024).