Ericameria nauseosa var. hololeuca

(A. Gray) G. L. Nesom & G. I. Baird

Phytologia 75: 86. 1993.

Common names: White rabbitbrush
Endemic
Basionym: Bigelowia graveolens var. hololeuca A. Gray Proc. Amer. Acad. Arts 8: 645. 1873 (as Bigelovia)
Synonyms: Chrysothamnus nauseosus var. hololeucus (A. Gray) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 65. Mentioned on page 63, 66, 68.

Plants 40–120 cm (pleasantly fragrant). Stems whitish, leafy, densely to loosely tomentose. Leaves whitish; blades 1-nerved, filiform to linear, 10–35 × 1–2 mm, faces tomentose. Involucres 7–9 mm. Phyllarie 14–16, apices erect, obtuse, abaxial faces tomentose. Corollas 7–9.5 mm, tubes puberulent to cobwebby, lobes 0.5–1 mm, glabrous; style appendages shorter than stigmatic portions. Cypselae densely hairy; pappi 5.2–7.2 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Well-drained, gravelly or sandy slopes
Elevation: 100–2500 m

Distribution

V20-106-distribution-map.gif

Ariz., Calif., Idaho, Nev., N.Mex., Oreg., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) G. L. Nesom & G. I. Baird +
Bigelowia graveolens var. hololeuca +
White rabbitbrush +
Ariz. +, Calif. +, Idaho +, Nev. +, N.Mex. +, Oreg. +  and Utah. +
100–2500 m +
Well-drained, gravelly or sandy slopes +
Flowering late summer–fall. +
Chrysothamnus nauseosus var. hololeucus +
Ericameria nauseosa var. hololeuca +
Ericameria nauseosa +
variety +