Doellingeria (Eucephalus) breweri

Brewer's Aster

Doellingeria breweri range Semple draft

Doellingeria breweriÌý(A. Gray) Semple, Brouillet & G.A. Allen is native to open coniferous forests and subalpine meadows in the Sierra Nevada in California and adjacent Nevada (; Allen et al., Syst. Bot. 939. 2019).  The species is rayless and has subsequal phyllaries. The species is diploid (2n=18).

The species was first described as a goldenaster (Chrysopsis breweri A. Gray, Heterotheca breweriÌý(A. Gray) Shinners). Semple (1988) was the first to recognize that it was a rayless aster, not a rayless goldenaster (Aster breweriÌý(A. Gray) Semple) and Nesom proposed the name Eucephalus breweriÌý(A. Gray) G.L. Nesom.

Specimens at the northern edge of the range may intergrade with D. glabratusÌý²¹²Ô»åÌýD. tomentellusÌý().

1-4 Doellingeria breweri. 1-3. Habit,inflorescence, head and upper leaf, Semple et al. 8390, Mt. Rose, Nevada. 4. Line drawing ex Semple (1988). 

Semple, J.C. 1988. Aster breweri, a new combination for a rayless aster based on Chrysopsis breweriÌý(Compositae: Astereae). Syst. Bot. 13: 538-546.

Allen, G.A., L. Brouillet, J.C. Semple, H.J. Guest, and R. Underhill. 2019. Diversification of the North American Doellingeria-Eucephalus Clade (Astereae: Asteraceae) as inferred from molecular and morphological evidence.  Syst. Bot. 44(4): 930-942.


Last updated 27 March 2025 by J.C. Semple

© 2025 J.C. Semple, including all photographs unless otherwise indicated