Flora of North America species comparison

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Ericameria pinifolia

Ericameria arizonica

pine goldenweed, pine-bush

Arizona goldenbush
Habit Plants 50–300 cm. Plants 20–50 cm.
Stems

erect to ascending, green when young, fastigiately branched, glabrous, resinous.

erect to spreading, reddish tan, becoming darker, branched, short-stipitate-glandular, usually 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;

blades elliptic to narrowly oblanceolate (flat or somewhat concave adaxially), 10–35 × 2–5 mm, midnerves evident (often with 1–2 fainter, collateral veins), apices acute, apiculate, faces short-stipitate-glandular, usually gland-dotted;

axillary fascicles absent.
Peduncles

3–30 mm (leafy).

1–10 mm (bracts 1–5, resembling phyllaries, stipitate-glandular).
Involucres

subcampanulate, 5–8 × 3.5–5.5 mm.

obconic, 5.5–7.5 × 2.5–4 mm.
Ray florets

3–10;

laminae 5.5–7 × 1.5–2 mm.

1–8;

laminae elliptic, 3–4 × 0.8–1.3 mm.
Disc florets

11–25;

corollas 5–8 mm.

5–15;

corollas 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.

30–40 in 4–5 series, tan, lanceolate to elliptic, 2–7 × 0.5–1.2 mm, strongly unequal, mostly chartaceous (bodies abruptly constricted at bases of appendages), midnerves faint, (margins membranous, sparsely ciliate apically), apices (usually recurved) usually acute to cuspidate, sometimes long-acuminate, abaxial faces glabrate, often gland-dotted.
Heads

in racemiform to thyrsiform-paniculiform arrays (to 30 × 3–12 cm).

in cymiform arrays (to 4 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.

usually tan, sometimes reddish, narrowly obconic, 4–5.5 mm, glabrous or densely sericeous;

pappi whitish tan, 4–5.5 mm.
2n

= 18.

Ericameria pinifolia

Ericameria arizonica
Phenology Flowering late summer–fall(–spring). Flowering fall.
Habitat Open, sandy to stony soils in chaparral, oak woodland, or scrub in near coastal communities Rock faces, cracks, and crevices and stony soils, usually on limestone
Elevation 100–1800 m (300–5900 ft) ca. 2100 m (ca. 6900 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ
[BONAP county map]
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 arizonica grows in the Grand Canyon.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 75. FNA vol. 20, p. 55.
Parent taxa Asteraceae > tribe Astereae > Ericameria Asteraceae > tribe Astereae > Ericameria
Sibling taxa
E. albida, E. arborescens, E. arizonica, E. bloomeri, E. brachylepis, E. cervina, E. compacta, E. cooperi, E. crispa, E. cuneata, E. discoidea, E. ericoides, E. fasciculata, E. gilmanii, E. greenei, E. laricifolia, E. lignumviridis, E. linearifolia, E. linearis, E. nana, E. nauseosa, E. obovata, E. ophitidis, E. palmeri, E. paniculata, E. parishii, E. parryi, E. resinosa, E. suffruticosa, E. teretifolia, E. watsonii, E. winwardii, E. zionis
E. albida, E. arborescens, E. bloomeri, E. brachylepis, E. cervina, E. compacta, E. cooperi, E. crispa, E. cuneata, E. discoidea, E. ericoides, E. fasciculata, E. gilmanii, E. greenei, E. laricifolia, E. lignumviridis, E. linearifolia, E. linearis, E. nana, E. nauseosa, E. obovata, E. ophitidis, E. palmeri, E. paniculata, E. parishii, E. parryi, E. pinifolia, E. resinosa, E. suffruticosa, E. teretifolia, E. watsonii, E. winwardii, E. zionis
Synonyms Haplopappus pinifolius
Name authority (A. Gray) H. M. Hall: Univ. Calif. Publ. Bot. 3: 54. (1907) R. P. Roberts: Sida 21: 1558, fig. 1. (2005)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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