Flora of North America species comparison

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Ericameria arizonica

Arizona goldenbush
Habit Plants 20–50 cm.
Stems

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

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

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

1–8;

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

5–15;

corollas 5–7 mm.
Phyllaries

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 cymiform arrays (to 4 cm wide).
Cypselae

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

pappi whitish tan, 4–5.5 mm.

Ericameria arizonica
Phenology Flowering fall.
Habitat Rock faces, cracks, and crevices and stony soils, usually on limestone
Elevation ca. 2100 m (ca. 6900 ft)
Distribution
from FNA
AZ
[BONAP county map]
Discussion

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. 55.
Parent taxa Asteraceae > tribe Astereae > Ericameria
Sibling taxa
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
Name authority 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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