Ericameria bloomeri

(A. Gray) J. F. Macbride

Contr. Gray Herb. 56: 36. 1918.

Common names: Bloomer’s goldenbush
Basionym: Haplopappus bloomeri A. Gray Proc. Amer. Acad. Arts 6: 541. 1865 (as Aplopappus)
Treatment appears in FNA Volume 20. Treatment on page 55. Mentioned on page 52.

Plants 20–90 cm. Stems green to reddish brown when young, branched, glabrous or sparsely hairy (sometimes tomentulose), often gland-dotted (sessile). Leaves ascending to spreading; blades filiform to narrowly oblong (adaxially flat to sulcate), 20–70 × 0.5–4 mm, midnerves evident abaxially, apices acute, sometimes mucronate, faces glabrous or sparsely hairy, often gland-dotted (sessile) and appearing pustular; axillary leaf fascicles sometimes present. Heads in (leafy) racemiform to narrowly paniculiform arrays (2–15 cm). Peduncles 3–15 mm (bracts usually 0). Involucres narrowly campanulate, 8–11 × 7–12 mm. Phyllaries 17–36 in 3–6 series, green to tan, ovate to linear-lanceolate, 3.5–11 × 0.8–2 mm, subequal, herbaceous or herbaceous-tipped, mid and inner chartaceous, midnerves evident at least on distal 1/2, (margins ciliate) apices acute to acuminate or cuspidate, abaxial faces glabrous or hairy, sometimes gland-dotted, resinous. Ray florets 0–5; laminae elliptic, 8–12 × 1.5–3 mm. Disc florets 4–14; corollas 7–11 mm. Cypselae tan to reddish brown, narrowly elliptic, 6–10 mm, glabrous or apically villous; pappi tan to reddish brown, 6–9 mm. 2n = 18.

Phenology: Flowering summer–fall.
Habitat: Sandy or rocky soils, openings in coniferous woods, Arid Transition and Canadian zones
Elevation: 1000–3000 m



B.C., Calif., Idaho, Nev., Oreg., Wash.


Ericameria bloomeri is apparently extirpated in British Columbia. It is widespread, relatively common, and variable. The significance of infraspecific taxa named by H. M. Hall (1928) is largely unexplored.

Selected References


Lower Taxa

... more about "Ericameria bloomeri"
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) J. F. Macbride +
Haplopappus bloomeri +
Bloomer’s goldenbush +
B.C. +, Calif. +, Idaho +, Nev. +, Oreg. +  and Wash. +
1000–3000 m +
Sandy or rocky soils, openings in coniferous woods, Arid Transition and Canadian zones +
Flowering summer–fall. +
Contr. Gray Herb. +
Haplopappus sect. Asiris +, Haplopappus sect. Ericameria +, Haplopappus sect. Macronema +  and Haplopappus sect. Stenotopsis +
Ericameria bloomeri +
Ericameria +
species +