Erigeron cervinus
Siskiyou daisy
(c) Trevor Van Loon, some rights reserved (CC BY), uploaded by Trevor Van Loon · licence
Family: Asteraceae · Type: Herb · Native
Conservation status: CNPS 4.3
Erigeron cervinus (Siskiyou daisy) is a native California herb in the Asteraceae family, recognized by distinctive woody rhizome and glabrous, glandular appearance.
Siskiyou daisy is a California native perennial herb found in the Klamath Ranges on open, rocky slopes and forest meadows at elevations of 900 to 1,900 meters. Flowering from June to August, this plant produces white ray flowers 7 to 10 millimeters long that coil when dry, arranged in heads 9 to 14 millimeters wide. Growing 15 to 30 centimeters tall with 0 to 3 branches above the middle, it emerges from a short to long weakly woody rhizome. Its basal leaves are oblanceolate to narrowly spoon-shaped, measuring 4 to 12 centimeters long, with cauline leaves slightly clasping and minimally reduced. The flower heads feature 20 to 30 ray flowers with phyllaries densely covered in minute glandular hairs.
Identification and appearance
Key characters: 29 sympatric species; distinctive woody rhizome and glabrous, glandular appearance
Habitat and range
Habitat: Open, rocky slopes, meadows, forest
Elevation: 900-1900 m
Outside California: southwestern Oregon
Bloom period
Erigeron cervinus blooms Jun-Aug.
Conservation status
CNPS 4.3
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 cervinus native to California?
Yes. Erigeron cervinus is native to California (recorded as native).
When does Erigeron cervinus bloom?
Erigeron cervinus blooms Jun-Aug.
What plant family does Erigeron cervinus belong to?
Erigeron cervinus is in the Asteraceae family, genus Erigeron.
Is Erigeron cervinus rare or endangered?
Erigeron cervinus carries California Rare Plant Rank 4.3, state rank S4.
What habitat does Erigeron cervinus grow in?
Erigeron cervinus grows in Open, rocky slopes, meadows, forest.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CNPS Rare Plant Inventory · Index of California Plant Names · CalPhotos · CDFW CNDDB
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.