Erigeron linearis

(Hooker) Piper

Contr. U.S. Natl. Herb. 11: 567. 1906.

Common names: Desert yellow fleabane
IllustratedEndemic
Basionym: Diplopappus linearis Hooker Fl. Bor.-Amer. 2: 21. 1834
Synonyms: Erigeron peucephyllus A. Gray
Treatment appears in FNA Volume 20. Treatment on page 299. Mentioned on page 265, 275.

Perennials, 5–15(–20) cm; taprooted, caudices branched, woody. Stems erect to slightly basally ascending, sparsely strigose (hairs white), eglandular. Leaves mostly basal (persistent) or basal and cauline; basal blades linear to linear-oblanceolate, (15–)30–70(–90) × 0.5–3 mm, cauline (on proximal 1/3–2/3 of stems) slightly reduced (bases abruptly widened, thickened, white-indurate, sheathing stem) margins entire, faces loosely strigose, eglandular. Heads 1(–3). Involucres 4–7 × 8–13 mm. Phyllaries in 2–3(–4) series, strigose to villous, minutely glandular. Ray florets 25–38; corollas usually bright yellow, sometimes cream to nearly white, 4–8 mm, laminae weakly coiling. Disc corollas 3.5–5.3 mm. Cypselae 2–2.3 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 10–20 bristles. 2n = 18, 27, 36, 45.


Phenology: Flowering May–Jul(–Aug).
Habitat: Open rocky slopes, grassland, sagebrush, bitterbrush, juniper
Elevation: 700–2000(–3100) m

Distribution

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B.C., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron linearis"
Guy L. Nesom +
(Hooker) Piper +
Diplopappus linearis +
Desert yellow fleabane +
B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
700–2000(–3100) m +
Open rocky slopes, grassland, sagebrush, bitterbrush, juniper +
Flowering May–Jul(–Aug). +
Contr. U.S. Natl. Herb. +
Illustrated +  and Endemic +
Erigeron peucephyllus +
Erigeron linearis +
Erigeron +
species +