Ericameria nauseosa var. nana

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

Phytologia 75: 87. 1993. 1993

Common names: Dwarf rabbitbrush
Basionyms: Chrysothamnus nauseosus var. nanus Cronquist in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 5: 129. 1955
Synonyms: Chrysothamnus nauseosus subsp. nanus (Cronquist) D. D. Keck
Treatment appears in FNA Volume 20. Treatment on page 67. Mentioned on page 63.

Plants 10–30 cm. Stems whitish, leafy, loosely tomentose. Leaves dark green to grayish; blades 1-nerved, filiform to linear, 30–40 × 1–3 mm, faces compactly tomentose. Involucres 8–13 mm. Phyllaries 14–18, apices erect, acute to obtuse, outer abaxial faces sparsely tomentose, inner glabrous. Corollas 7.5–10 mm, tubes glabrous or moderately hairy, lobes 1.6–2.5 mm, glabrous; style appendages shorter than stigmatic portions. Cypselae densely hairy; pappi 5.2–9 mm. 2n = 18.

Phenology: Flowering late summer–fall.
Habitat: Dry, rocky ridges and cliffs
Elevation: 1200–2000 m


Selected References


Lower Taxa


Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(Cronquist) G. L. Nesom & G. I. Baird +
Chrysothamnus nauseosus var. nanus +
Dwarf rabbitbrush +
Idaho +, Oreg. +  and Wash. +
1200–2000 m +
Dry, rocky ridges and cliffs +
Flowering late summer–fall. +
Chrysothamnus nauseosus subsp. nanus +
Ericameria nauseosa var. nana +
Ericameria nauseosa +
variety +