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FNA | Family List | FNA Vol. 20 | Asteraceae | Ericameria

28. Ericameria pinifolia (A. Gray) H. M. Hall, Univ. Calif. Publ. Bot. 3: 54. 1907.

Pinebush, pine goldenweed

Haplopappus pinifolius A. Gray, Proc. Amer. Acad. Arts 8: 636. 1873 (as Aplopappus)

Plants 50–300 cm. Stems erect to ascending, green when young, fastigiately branched, glabrous, resinous. Leaves ascending to spreading; blades linear to narrowly oblanceolate (terete or adaxially sulcate), 12–35 × 0.5–1.5 mm, midnerves obscure, apices acute, often mucronate, faces glabrous or moderately hairy, gland-dotted (in circular, deep pits), resinous; axillary fascicles of 4–10 leaves, shorter than subtending leaves. Heads in racemiform to thyrsiform-paniculiform arrays (to 30 × 3–12 cm). Peduncles 3–30 mm (leafy). Involucres subcampanulate, 5–8 × 3.5–5.5 mm. Phyllaries 20–26 in 4–6 series, tan, ovate to lanceolate or oblong, 3–7 × 1–1.8 mm, unequal, mostly chartaceous, outermost ± herbaceous-appendaged, midnerves thickened, darker resin ducts, slightly expanded apically, (margins membranous, fimbriate, especially distally) apices erect, acuminate to cuspidate, inner and mid acute to acuminate, abaxial faces usually glabrous, resinous . Ray florets 3–10; laminae 5.5–7 × 1.5–2 mm. Disc florets 11–25; corollas 5–8 mm. Cypselae tan to brown, subobovoid, 3.5–5 mm, glabrous or moderately hairy, more densely distally; pappi off-white to brown, 6–7.5 mm. 2n = 18.

Flowering late summer–fall(–spring). Open, sandy to stony soils in chaparral, oak woodland, or scrub in near coastal communities; of conservation concern; 100–1800 m; Calif.; Mexico (Baja California).

Ericameria pinifolia ranges from Ventura County to northern Baja California. It blooms primarily in late summer and fall; it sometimes produces scattered, larger flowering heads in spring.


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