Flora of North America species comparison

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Ericameria arizonica

Ericameria compacta

Arizona goldenbush

Charleston Mountain goldenbush
Habit Plants 20–50 cm. Plants 15–50 cm.
Stems

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

erect to spreading, green when young, becoming tan, branched proximally, often with scattered, crinkled hairs and short- stipitate-glandular hairs.
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.

mostly erect or ascending;

blades oblanceolate to narrowly spatulate, 20–40 × 2–3(–5) mm, midnerves evident, apices acute to acuminate, faces short-stipitate-glandular, sometimes gland-dotted (sessile), resinous;

axillary fascicles of 1–7 reduced leaves often proximally present, distally absent.
Peduncles

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

1–15 mm (bracts 0–3, usually resembling phyllaries).
Involucres

obconic, 5.5–7.5 × 2.5–4 mm.

narrowly campanulate, 12–15 × 4.5–5.5 mm.
Ray florets

1–8;

laminae elliptic, 3–4 × 0.8–1.3 mm.

0.
Disc florets

5–15;

corollas 5–7 mm.

10–16;

corollas 9.1–11.5 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.

18–24 in (3–)4 series, tan, ovate or lanceolate to elliptic, 4–11 × 0.6–1.2 mm, subequal, mostly chartaceous, midnerves raised, evident, apices acute to cuspidate, herbaceous-tipped, abaxial faces resinous.
Heads

in cymiform arrays (to 4 cm wide).

usually in paniculiform or cymiform arrays, sometimes borne singly.
Cypselae

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

pappi whitish tan, 4–5.5 mm.

tan to reddish, ellipsoid, 6–10 mm, glabrate or apically sparsely hairy;

pappi off-white to brown, sometimes reddish, 7–9 mm.
2n

= 18.

Ericameria arizonica

Ericameria compacta
Phenology Flowering fall. Flowering late summer–fall.
Habitat Rock faces, cracks, and crevices and stony soils, usually on limestone Sheltered, rocky to gravelly slopes in pine forests
Elevation ca. 2100 m (ca. 6900 ft) 2500–3500 m (8200–11500 ft)
Distribution
from FNA
AZ
[BONAP county map]
from FNA
NV
[BONAP county map]
Discussion

Of conservation concern.

Ericameria arizonica grows in the Grand Canyon.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 55. FNA vol. 20, p. 56.
Parent taxa Asteraceae > tribe Astereae > Ericameria 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
E. albida, E. arborescens, E. arizonica, E. bloomeri, E. brachylepis, E. cervina, 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 bloomeri subsp. compactus, Haplopappus bloomeri var. compactus, Haplopappus compactus
Name authority R. P. Roberts: Sida 21: 1558, fig. 1. (2005) (H. M. Hall) G. L. Nesom: Phytologia 68: 152. (1990)
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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