Flora of North America species comparison

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Ericameria albida

Ericameria fasciculata

white-flower rabbitbrush

Eastwood's goldenbush
Habit Plants 10–150 cm. Plants 30–150 cm.
Stems

erect to ascending, pale green when young, becoming whitish, fastigiately branched, glabrous, resinous at and distal to nodes.

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

usually ascending, recurved when older;

blades filiform (adaxially sulcate), 15–35 × 0.5–2 mm, midnerves obscure, apices acute, often mucronate, faces glabrous, gland-dotted (in pits and sessile);

axillary leaf fascicles often present.

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

usually less than 10 mm (ebracteate).

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

turbinate, 6–10 × 2–4 mm.

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

0.

4–6;

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

5–7;

corollas 4.7–7 mm.

18–25;

corollas 6.5–8 mm.
Phyllaries

15–20 in 3–4 series, green to tan, ovate to lanceolate, 1.5–6 × 0.7–1.5 mm, unequal, outer herbaceous or herbaceous-tipped, inner mostly chartaceous (bodies truncate or tapering gradually or abruptly to bases of herbaceous appendages), midnerves faint (margins membranous, usually ciliate), apices (outer and mid) cuspidate (tips squarrose), abaxial faces glabrous, resinous.

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

in rounded, cymiform arrays (to 5 cm wide).

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

tan, narrowly turbinate to subcylindric or narrowly ellipsoid, 4–5 mm (5-ribbed), moderately hairy to sericeous, often gland-dotted (glands spheric, glistening) distally;

pappi whitish, 4.5–5.5 mm.

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

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

= 18.

= 18.

Ericameria albida

Ericameria fasciculata
Phenology Flowering late summer–fall. Flowering summer–fall, occasionally in spring.
Habitat Dry, alkaline plains, sandy or silty soils Sandy soils
Elevation 300–1800 m (1000–5900 ft) 0–500 m (0–1600 ft)
Distribution
from FNA
CA; NV; UT
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Ericameria albida is common in the Great Basin region.

(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. 54. FNA vol. 20, p. 59.
Parent taxa Asteraceae > tribe Astereae > Ericameria Asteraceae > tribe Astereae > Ericameria
Sibling taxa
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. 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
Synonyms Bigelowia albida, Chrysothamnus albidus Chrysoma fasciculata, Haplopappus eastwoodiae
Name authority (M. E. Jones ex A. Gray) L. C. Anderson: Great Basin Naturalist 55: 86. (1995) (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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