Ericameria cooperi |
Ericameria brachylepis |
|
---|---|---|
Cooper's goldenbush |
boundary goldenbush, chaparral goldenbush, chaparral goldenweed |
|
Habit | Plants 10–200 cm. | |
Stems | erect to spreading, green when young, fastigiately branched, glabrous, gland-dotted (in pits), resinous. |
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Leaves | ascending to spreading; blades linear to narrowly elliptic (usually terete to sulcate adaxially), 10–25 × 0.8–1.5 mm, midnerves obscure to evident, apices usually acute, rarely rounded, sometimes mucronate, faces glabrous or sparsely hairy, gland-dotted (in circular, deep pits), resinous; axillary fascicles of 2–10 leaves, shorter than subtending leaves. |
|
Peduncles | 3–20 mm (leafy or bracteate). |
|
Involucres | turbinate, 4–6 × 2–5 mm. |
|
Ray florets | usually 0, rarely 1–2; laminae elliptic, 4–6 × 1–1.5 mm. |
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Disc florets | 6–16(–22); corollas 5–6.5 mm. |
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Phyllaries | 15–22 in 3–4 series, tan, ovate to elliptic, 2.5–7 × 0.6–1.5 mm, unequal, outer ± herbaceous, mid and inner mostly chartaceous, midnerves darker, strongly raised, uniform in widths, resinous, (margins membranous, ciliate especially distally) apices erect, acute, abaxial faces glabrous. |
|
Heads | in racemiform to paniculiform arrays (1–15 × ca. 8 cm). |
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Cypselae | tan to purple, 3.5–4 mm (7–8 ribbed), densely hairy; pappi off-white to brown, sometimes reddish, 5–6.5 mm. |
|
2n | = 36. |
|
Ericameria cooperi |
Ericameria brachylepis |
|
Phenology | Flowering late summer–fall. | |
Habitat | Open rocky slopes, chaparral and desert scrub | |
Elevation | 400–1500 m (1300–4900 ft) | |
Distribution |
CA; NV; nw Mexico
|
AZ; CA; Mexico (Baja California)
|
Discussion | Varieties 2 (1 in the flora). Ericameria cooperi var. bajacalifornica (Urbatsch & Wussow) Urbatsch is known only from Mexico (Baja California). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 20, p. 56. | FNA vol. 20, p. 55. |
Parent taxa | Asteraceae > tribe Astereae > Ericameria | Asteraceae > tribe Astereae > Ericameria |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Bigelowia cooperi, Haplopappus cooperi | Bigelowia brachylepis, Haplopappus propinquus |
Name authority | (A. Gray) H. M. Hall: Univ. Calif. Publ. Bot. 3: 56. (1907) | (A. Gray) H. M. Hall: Univ. Calif. Publ. Bot. 3: 56. (1907) |
Web links |