Flora of North America species comparison

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Ericameria nauseosa var. mohavensis

Ericameria nauseosa var. bernardina
Photo is of parent taxon

Mojave rabbitbrush
Photo is of parent taxon

Bernardina rabbitbrush, San Bernardino rubber rabbitbrush
Habit Plants 60–80 cm. Plants 50–150 cm.
Stems

white to yellowish green, nearly leafless at flowering, densely tomentose.

yellowish green, becoming whitish, leafy, compactly tomentose.
Leaves

yellowish green;

blades 1-nerved, filiform, 10–30 × 0.5–1.5 mm, faces glabrate.

mostly greenish yellow;

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

8.5–12.

10–14 mm.
Corollas

7–10.9 mm, tubes puberulent, lobes 0.9–2 mm, glabrous;

style appendages longer than stigmatic portions.

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

style appendages longer than stigmatic portions.
Phyllaries

20–26, apices erect, acute, abaxial faces tomentose to glabrate.

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

densely hairy;

pappi 6.3–9.8 mm.

densely sericeous;

pappi 7–8 mm.
2n

= 18.

Ericameria nauseosa var. mohavensis

Ericameria nauseosa var. bernardina
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Dry scrub Artemisia, pinyon, Atriplex, Joshua tree communities Open yellow-pine forests
Elevation 400–2400 m (1300–7900 ft) 1200–3000 m (3900–9800 ft)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
CA; Mexico (Baja California)
[BONAP county map]
Discussion

Variety mohavensis may intergrade with vars. hololeuca and oreophila. It grows in southern Nevada and southern California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 66. FNA vol. 20, p. 64.
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. 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. 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
Synonyms Bigelowia mohavensis, Chrysothamnus nauseosus var. mohavensis Chrysothamnus nauseosus var. bernardinus
Name authority (Greene) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (1993) (H. M. Hall) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (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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