Erigeron bloomeri
Bloomer's fleabane, Bloomer's Fleabane
(c) Jim Morefield, some rights reserved (CC BY) · licence
Family: Asteraceae · Type: Herb · Native
Erigeron bloomeri (Bloomer's fleabane) is a native California herb in the Asteraceae family, recognized by Rayless (discoid) fleabane; single unbranched strigose-to-glabrous glandless stem; CaR-n SNH-GB-KR.
Bloomer's fleabane is a California native perennial found in alpine and subalpine regions at elevations of 4 to 15 centimeters. Flowering from late summer to early autumn, this plant produces no ray flowers but has small disc flowers. Growing as a dense, tufted herb with an extremely short stem from a tapered root system, it forms compact clusters with mostly basal leaves. Its leaves are narrow and linear, ranging from 2 to 7 centimeters long, typically glabrous or sparsely hairy. The plant develops solitary flower heads with involucres 5 to 10 millimeters wide, characterized by strigose phyllaries with minute glandular surfaces.
Identification and appearance
Key characters: Rayless (discoid) fleabane; single unbranched strigose-to-glabrous glandless stem; CaR-n SNH-GB-KR.
How to tell it apart
vs Bellis: Erigeron has double-layered pappus (outer scales + inner bristles); Bellis completely lacks pappus.; vs Symphyotrichum: Erigeron has double pappus (2 layers); Symphyotrichum has single layer of uniform bristles.; vs Corethrogyne: Erigeron has simple unbranched stems; Corethrogyne has branched stems.; vs Pseudognaphalium: Erigeron has flat button-like flower heads; Pseudognaphalium has woolly clustered heads without rays.; vs Artemisia: Erigeron has obvious ray petals around yellow disk; Artemisia lacks ray petals entirely.
Frequently asked questions
Is Erigeron bloomeri native to California?
Yes. Erigeron bloomeri is native to California (recorded as native).
What plant family does Erigeron bloomeri belong to?
Erigeron bloomeri is in the Asteraceae family, genus Erigeron.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · Index of California Plant Names · CalPhotos
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.