Flora of North America species comparison

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Ericameria nauseosa var. bernardina

Ericameria nauseosa var. washoensis
Photo is of parent taxon

Bernardina rabbitbrush, San Bernardino rubber rabbitbrush
Photo is of parent taxon

rubber rabbitbrush, Washoe rabbitbrush
Habit Plants 50–150 cm. Plants 30–45(–100) cm.
Stems

yellowish green, becoming whitish, leafy, compactly tomentose.

whitish, sparsely leafy, loosely tomentose.
Leaves

mostly greenish yellow;

blades 1-nerved, linear, 30–50 × 1–2 mm, faces ± tomentose.

grayish green;

blades 1–3-nerved, spatulate to narrowly oblanceolate, 20–30 × 2–3 mm, faces loosely hairy.
Involucres

10–14 mm.

10–12 mm.
Corollas

10–12 mm, tubes puberulent, lobes 1.7–2.3 mm, glabrous;

style appendages longer than stigmatic portions.

7.5–9(–10) mm, tubes puberulent, lobes 1.3–1.6 mm, villous;

style appendages longer than stigmatic portions.
Phyllaries

13–20 (in vertical ranks), apices erect, acuminate, abaxial faces glabrous or tomentose.

16–20(–30), (brownish costal nerves often evident) apices acute to obtuse, outer abaxial faces sparsely villous to tomentose, inner tomentulose.
Cypselae

densely sericeous;

pappi 7–8 mm.

distally pilose;

pappi 6.5–10 mm.
2n

= 18.

Ericameria nauseosa var. bernardina

Ericameria nauseosa var. washoensis
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Open yellow-pine forests Rocky, open sites in juniper and pinyon grasslands
Elevation 1200–3000 m (3900–9800 ft) 1500–1700 m (4900–5600 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Variety washoensis is known from northeastern California and northwestern Nevada.

of conservation concern

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 64. FNA vol. 20, p. 69.
Parent taxa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa
Sibling taxa
E. nauseosa var. arenaria, E. nauseosa var. bigelovii, E. nauseosa var. ceruminosa, E. nauseosa var. graveolens, E. nauseosa var. hololeuca, E. nauseosa var. iridis, E. nauseosa var. juncea, E. nauseosa var. latisquamea, E. nauseosa var. leiosperma, E. nauseosa var. mohavensis, E. nauseosa var. nana, E. nauseosa var. nauseosa, E. nauseosa var. nitida, E. nauseosa var. oreophila, E. nauseosa var. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
E. nauseosa var. arenaria, E. nauseosa var. bernardina, E. nauseosa var. bigelovii, E. nauseosa var. ceruminosa, E. nauseosa var. graveolens, E. nauseosa var. hololeuca, E. nauseosa var. iridis, E. nauseosa var. juncea, E. nauseosa var. latisquamea, E. nauseosa var. leiosperma, E. nauseosa var. mohavensis, E. nauseosa var. nana, E. nauseosa var. nauseosa, E. nauseosa var. nitida, E. nauseosa var. oreophila, E. nauseosa var. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata
Synonyms Chrysothamnus nauseosus var. bernardinus Chrysothamnus nauseosus subsp. washoensis, E. nauseosa var. washoensis
Name authority (H. M. Hall) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (1993) (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 88. (1993)
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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