Ericameria pinifolia |
Ericameria gilmanii |
|
---|---|---|
pine goldenweed, pine-bush |
Gilman's goldenbush, whiteflower goldenbush |
|
Habit | Plants 50–300 cm. | Plants 10–50 cm. |
Stems | erect to ascending, green when young, fastigiately branched, glabrous, resinous. |
erect to ascending or divergent, much branched, sparsely hairy (hairs low, conic), 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. |
ascending to spreading, distally recurved; blades narrowly obovate (sometimes conduplicate), 6–12 × 2–4 mm, midnerves raised adaxially, (margins often undulate) apices acute, mucronate to cuspidate, faces gland-dotted to resinous; sometimes with axillary fascicles of 1–7 leaves. |
Peduncles | 3–30 mm (leafy). |
1–15 mm (bracts 0 or 1–4, scalelike). |
Involucres | subcampanulate, 5–8 × 3.5–5.5 mm. |
narrowly campanulate, 8–12 × 4–6 mm. |
Ray florets | 3–10; laminae 5.5–7 × 1.5–2 mm. |
4–7; laminae (white) 4–5.5 × 1–2 mm. |
Disc florets | 11–25; corollas 5–8 mm. |
10–18; corollas (white) 5.5–7 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. |
22–28 in 4–6 series, green to tan, squarrose or reflexed (outer), ovate to oblong, 2.5–7 × 0.6–1.5 mm, unequal, outer herbaceous or herbaceous-cuspidate, innermost chartaceous (bodies usually apically obtuse to retuse proximal to appendages), midnerves and subapical resin ducts darker, apices acute to acuminate, abaxial faces glabrous, resinous. |
Heads | in racemiform to thyrsiform-paniculiform arrays (to 30 × 3–12 cm). |
usually borne singly, sometimes in cymiform to racemiform arrays (4–6 cm wide). |
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. |
tan to brown, narrowly turbinate, 3.5–4 mm (5-ribbed), densely pilose, sericeous to villous; pappi whitish, 5–6.5 mm. |
2n | = 18. |
= 18. |
Ericameria pinifolia |
Ericameria gilmanii |
|
Phenology | Flowering late summer–fall(–spring). | Flowering late summer–fall. |
Habitat | Open, sandy to stony soils in chaparral, oak woodland, or scrub in near coastal communities | Crevices on rocky cliff faces, often on limestone |
Elevation | 100–1800 m (300–5900 ft) | 2100–3400 m (6900–11200 ft) |
Distribution |
CA; Mexico (Baja California)
|
CA |
Discussion | Of conservation concern. 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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Ericameria gilmanii is known only from Inyo County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 75. | FNA vol. 20, p. 59. |
Parent taxa | Asteraceae > tribe Astereae > Ericameria | Asteraceae > tribe Astereae > Ericameria |
Sibling taxa | ||
Synonyms | Haplopappus pinifolius | Haplopappus gilmanii |
Name authority | (A. Gray) H. M. Hall: Univ. Calif. Publ. Bot. 3: 54. (1907) | (S. F. Blake) G. L. Nesom: Phytologia 68: 153. (1990) |
Web links |