Ericameria arborescens

(A. Gray) Greene

Man. Bot. San Francisco, 175. 1894.

Common names: Goldenfleece
Basionym: Linosyris arborescens A. Gray in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 79. 1859
Synonyms: Haplopappus arborescens (A. Gray) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 54. Mentioned on page 53, 71.

Plants 10–500 cm. Stems erect to spreading, green when young, fastigiately branched, glabrous or sparsely hairy, gland-dotted, resinous. Leaves mostly ascending to spreading, older deflexed; blades filiform (sulcate to concave), 25–90 × 0.5–3 mm, midnerves obscure to evident, apices acuminate to attenuate, often mucronate, faces glabrous or sparsely hairy, gland-dotted (in deep, circular pits), resinous; axillary leaf fascicles sometimes present. Heads in rounded, cymiform arrays (to 10 cm wide). Peduncles 1–15 mm (bracts 0–7, scalelike, resembling phyllaries). Involucres turbinate to subcampanulate, 4–6 × 3.5–4.5 mm. Phyllaries 20–25 in 3–4 series, tan, narrowly triangular to lanceolate, 1.5–5 × 0.5–1 mm, unequal, mostly chartaceous, midnerves evident, raised, mostly uniform in width to slightly dilated apically, (margins membranous, fimbriate) apices erect, acute, abaxial faces resinous. Ray florets 0. Disc florets 10–25; corollas 4–5 mm. Cypselae tan to brown, narrowly turbinate, 2–3 mm (5-ribbed), hairy; pappi tan, 3.5–4.5 mm. 2n = 18.

Phenology: Flowering late summer–fall.
Habitat: Dry foothill slopes, in chaparral
Elevation: 90–2000 m


Selected References


Lower Taxa

... more about "Ericameria arborescens"
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) Greene +
Linosyris arborescens +
Goldenfleece +
Calif. +  and Oreg. +
90–2000 m +
Dry foothill slopes, in chaparral +
Flowering late summer–fall. +
Man. Bot. San Francisco, +
Haplopappus arborescens +
Ericameria arborescens +
Ericameria +
species +