Flora of North America species comparison

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Ericameria cooperi

Ericameria fasciculata

Cooper's goldenbush

Eastwood's goldenbush
Habit Plants 30–150 cm.
Stems

erect to ascending, green when young, fastigiately branched, glabrous or sparsely hairy, resinous.
Leaves

ascending to spreading;

blades filiform (terete or flattened), 5–25 × 1–2 mm, midnerves obscure, apices acute often mucronate, faces glabrous or sparsely hairy, regularly gland-dotted (in circular, deep pits), resinous;

axillary fascicles of 2–10 leaves, shorter than subtending leaves.
Peduncles

1–15 mm (bracts 3+, leaflike).
Involucres

subcampanulate, 6–8.5 × 5–7 mm.
Ray florets

4–6;

laminae 4.5–6 × 1.2–2 mm.
Disc florets

18–25;

corollas 6.5–8 mm.
Phyllaries

22–26 in 3–5 series, yellowish tan, ovate to lanceolate, 2.5–7 × 0.6–1.5 mm, unequal, mostly chartaceous, midnerves evident, sometimes with 1–2, collateral nerves, ± thickened, raised, often expanded distally, subapical resin ducts darker, narrow and only slightly thickened, (margins membranous, erose-ciliate) apices erect, acute to acuminate or cuspidate, abaxial faces glabrous or sparsely hairy.
Heads

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

tan to brown, subcylindric, 3.5–4 mm, sericeous to villous;

pappi off-white to reddish brown, 6.5–8 mm.
2n

= 18.

Ericameria cooperi

Ericameria fasciculata
Phenology Flowering summer–fall, occasionally in spring.
Habitat Sandy soils
Elevation 0–500 m (0–1600 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 fasciculata is known only from near Monterey and Carmel bays (Monterey County). It probably hybridizes with E. ericoides.

(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. 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
Subordinate taxa
E. cooperi var. cooperi
Synonyms Bigelowia cooperi, Haplopappus cooperi Chrysoma fasciculata, Haplopappus eastwoodiae
Name authority (A. Gray) H. M. Hall: Univ. Calif. Publ. Bot. 3: 56. (1907) (Eastwood) J. F. Macbride: Contr. Gray Herb. 56: 36. (1918)
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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