Ericameria nauseosa var. mohavensis

(Greene) G. L. Nesom & G. I. Baird

Phytologia 75: 87. 1993.

Common names: Mojave rabbitbrush
Endemic
Basionym: Bigelowia mohavensis Greene in A. Gray et al., Syn. Fl. N. Amer. 1(2): 138. 1884 (as Bigelovia)
Synonyms: Chrysothamnus nauseosus var. mohavensis (Greene) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 66. Mentioned on page 63, 68.

Plants 60–80 cm. Stems white to yellowish green, nearly leafless at flowering, densely tomentose. Leaves yellowish green; blades 1-nerved, filiform, 10–30 × 0.5–1.5 mm, faces glabrate. Involucres 8.5–12. Phyllaries 20–26, apices erect, acute, abaxial faces tomentose to glabrate. Corollas 7–10.9 mm, tubes puberulent, lobes 0.9–2 mm, glabrous; style appendages longer than stigmatic portions. Cypselae densely hairy; pappi 6.3–9.8 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Dry scrub Artemisia, pinyon, Atriplex, Joshua tree communities
Elevation: 400–2400 m

Discussion

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

Selected References

None.

Lower Taxa

None.
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(Greene) G. L. Nesom & G. I. Baird +
Bigelowia mohavensis +
Mojave rabbitbrush +
Calif. +  and Nev. +
400–2400 m +
Dry scrub Artemisia, pinyon, Atriplex, Joshua tree communities +
Flowering late summer–fall. +
Chrysothamnus nauseosus var. mohavensis +
Ericameria nauseosa var. mohavensis +
Ericameria nauseosa +
variety +