Flora of North America species comparison

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Ericameria nauseosa var. washoensis

Ericameria nauseosa var. hololeuca
Photo is of parent taxon

rubber rabbitbrush, Washoe rabbitbrush
Photo is of parent taxon

common rabbitbrush, white rabbitbrush
Habit Plants 30–45(–100) cm. Plants 40–120 cm (pleasantly fragrant).
Stems

whitish, sparsely leafy, loosely tomentose.

whitish, leafy, densely to loosely tomentose.
Leaves

grayish green;

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

whitish;

blades 1-nerved, filiform to linear, 10–35 × 1–2 mm, faces tomentose.
Involucres

10–12 mm.

7–9 mm.
Corollas

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

style appendages longer than stigmatic portions.

7–9.5 mm, tubes puberulent to cobwebby, lobes 0.5–1 mm, glabrous;

style appendages shorter than stigmatic portions.
Cypselae

distally pilose;

pappi 6.5–10 mm.

densely hairy;

pappi 5.2–7.2 mm.
Phyllarie(s)

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

14–16, apices erect, obtuse, abaxial faces tomentose.
2n

= 18.

= 18.

Ericameria nauseosa var. washoensis

Ericameria nauseosa var. hololeuca
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Rocky, open sites in juniper and pinyon grasslands Well-drained, gravelly or sandy slopes
Elevation 1500–1700 m (4900–5600 ft) 100–2500 m (300–8200 ft)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
AZ; CA; ID; NM; NV; OR; UT
[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. 69. FNA vol. 20, p. 65.
Parent taxa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa
Sibling taxa
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
E. nauseosa var. arenaria, E. nauseosa var. bernardina, E. nauseosa var. bigelovii, E. nauseosa var. ceruminosa, E. nauseosa var. graveolens, 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
Synonyms Chrysothamnus nauseosus subsp. washoensis, E. nauseosa var. washoensis Bigelowia graveolens var. hololeuca, Chrysothamnus nauseosus var. hololeucus
Name authority (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 88. (1993) (A. Gray) G. L. Nesom & G. I. Baird: Phytologia 75: 86. (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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