Flora of North America species comparison

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Ericameria cooperi

Ericameria gilmanii

Cooper's goldenbush

Gilman's goldenbush, whiteflower goldenbush
Habit Plants 10–50 cm.
Stems

erect to ascending or divergent, much branched, sparsely hairy (hairs low, conic), resinous.
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

1–15 mm (bracts 0 or 1–4, scalelike).
Involucres

narrowly campanulate, 8–12 × 4–6 mm.
Ray florets

4–7;

laminae (white) 4–5.5 × 1–2 mm.
Disc florets

10–18;

corollas (white) 5.5–7 mm.
Phyllaries

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

usually borne singly, sometimes in cymiform to racemiform arrays (4–6 cm wide).
Cypselae

tan to brown, narrowly turbinate, 3.5–4 mm (5-ribbed), densely pilose, sericeous to villous;

pappi whitish, 5–6.5 mm.
2n

= 18.

Ericameria cooperi

Ericameria gilmanii
Phenology Flowering late summer–fall.
Habitat Crevices on rocky cliff faces, often on limestone
Elevation 2100–3400 m (6900–11200 ft)
Distribution
from FNA
CA; NV; nw Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
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.)

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. 56. FNA vol. 20, p. 59.
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. 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. compacta, E. cooperi, E. crispa, E. cuneata, E. discoidea, E. ericoides, E. fasciculata, 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
Subordinate taxa
E. cooperi var. cooperi
Synonyms Bigelowia cooperi, Haplopappus cooperi Haplopappus gilmanii
Name authority (A. Gray) H. M. Hall: Univ. Calif. Publ. Bot. 3: 56. (1907) (S. F. Blake) G. L. Nesom: Phytologia 68: 153. (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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