Flora of North America species comparison

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Ericameria nauseosa var. juncea

Ericameria nauseosa var. mohavensis
Photo is of parent taxon

rush rabbitbrush
Photo is of parent taxon

Mojave rabbitbrush
Habit Plants 40–70 cm. Plants 60–80 cm.
Stems

yellowish green, usually leafless at flowering, compactly tomentose.

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

yellowish green;

blades 1-nerved, filiform, 10–30 × 0.7–1 mm, faces compactly tomentose.

yellowish green;

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

9.5–12 mm.

8.5–12.
Corollas

7–8.5 mm, tubes hairy, lobes 0.7–0.9 mm, villous;

style appendages longer than stigmatic portions.

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

style appendages longer than stigmatic portions.
Phyllaries

22–25, apices erect, acute, abaxial faces tomentose or glabrate.

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

hairy;

pappi 5.6–7.6 mm.

densely hairy;

pappi 6.3–9.8 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. juncea

Ericameria nauseosa var. mohavensis
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Blackbrush, matchweed, shadscale, and pinyon-juniper communities Dry scrub Artemisia, pinyon, Atriplex, Joshua tree communities
Elevation 1200–1800 m (3900–5900 ft) 400–2400 m (1300–7900 ft)
Distribution
from FNA
AZ; NV; UT
[BONAP county map]
from FNA
CA; NV
[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. 66.
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. 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
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
Synonyms Bigelowia juncea, Chrysothamnus nauseosus var. junceus Bigelowia mohavensis, Chrysothamnus nauseosus var. mohavensis
Name authority (Greene) G. L. Nesom & G. I. Baird: Phytologia 75: 86. (1993) (Greene) 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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