Flora of North America species comparison

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Ericameria nauseosa var. texensis

Ericameria nauseosa var. washoensis
Photo is of parent taxon

Texas rabbitbrush
Photo is of parent taxon

rubber rabbitbrush, Washoe rabbitbrush
Habit Plants 20–40(–50) cm. Plants 30–45(–100) cm.
Stems

whitish, leafy, loosely tomentose.

whitish, sparsely leafy, loosely tomentose.
Leaves

grayish green;

blades 1-nerved, linear, 10–35 × 1(–1.5) mm, faces loosely tomentulose.

grayish green;

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

8–11.5 mm.

10–12 mm.
Corollas

8.4–10.9 mm, tubes glabrous or sparsely puberulent, lobes 0.6–1.3 mm, glabrous;

style appendages shorter than stigmatic portions.

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

style appendages longer than stigmatic portions.
Phyllaries

16–23 (outer margins ciliate), apices erect, acute to obtuse (outer) to acuminate (inner), outer abaxial faces tomentose, glabrescent.

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

glabrous;

pappi 5.2–7.4 mm.

distally pilose;

pappi 6.5–10 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. texensis

Ericameria nauseosa var. washoensis
Phenology Flowering fall. Flowering late summer–fall.
Habitat Limestone cliffs and among boulders, less common on gravel alluvium of streambeds, associated with bigtooth maple, hornbeam, madrone, and yellow pine woodlands Rocky, open sites in juniper and pinyon grasslands
Elevation 1500–2100 m (4900–6900 ft) 1500–1700 m (4900–5600 ft)
Distribution
from FNA
NM; TX
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Of conservation concern.

Variety texensis is known from the Guadalupe Mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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. 69.
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. 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 subsp. texensis Chrysothamnus nauseosus subsp. washoensis, E. nauseosa var. washoensis
Name authority (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 88. (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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