Flora of North America species comparison

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Ericameria nauseosa var. speciosa
Photo is of parent taxon

common rabbit-bush, rubber rabbitbrush, showy common rabbit-brush, showy rabbitbrush
Habit Plants 40–200 cm (shorter in some alpine forms).
Stems

whitish, leafy, loosely tomentose.
Leaves

dark green to grayish white;

blades 1-nerved, linear to linear-oblanceolate, 30–70 × 0.3–1.5(–2.5) mm, faces usually loosely, rarely compactly, tomentose.
Involucres

7.5–13.5 mm.
Corollas

8.7–13 mm, tubes tomentose or glabrous, lobes 1.1–2.1 mm, glabrous;

style appendages longer than stigmatic portions.
Phyllaries

12–28, apices erect, acute, abaxial faces tomentose (especially outer), sometimes sparsely.
Cypselae

densely hairy;

pappi 6–11.3 mm.

Ericameria nauseosa var. speciosa
Phenology Flowering late summer–fall.
Habitat Dry habitats, including juniper-sage, yellow pine, and pinyon communities
Elevation 50–3500 m (200–11500 ft)
Distribution
from FNA
CA; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC
[BONAP county map]
Discussion

Variety speciosa intergrades with vars. hololeuca and oreophila. Stabilized hybrids with Ericameria discoidea occur in Mono County, California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20.
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. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
Synonyms Chrysothamnus speciosus, Chrysothamnus nauseosus subsp. albicaulis, Chrysothamnus nauseosus subsp. speciosus
Name authority (Nuttall) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (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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