Flora of North America species comparison

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Ericameria nauseosa var. washoensis
Photo is of parent taxon

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

whitish, sparsely leafy, loosely tomentose.
Leaves

grayish green;

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

10–12 mm.
Corollas

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

style appendages longer than stigmatic portions.
Phyllaries

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

distally pilose;

pappi 6.5–10 mm.
2n

= 18.

Ericameria nauseosa var. washoensis
Phenology Flowering late summer–fall.
Habitat Rocky, open sites in juniper and pinyon grasslands
Elevation 1500–1700 m (4900–5600 ft)
Distribution
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. 69.
Parent taxa 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
Synonyms Chrysothamnus nauseosus subsp. washoensis, E. nauseosa var. washoensis
Name authority (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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