Ericameria parryi var. monocephala

(A. Nelson & P. B. Kennedy) G. L. Nesom & G. I. Baird

Phytologia 75: 89. 1993.

Common names: One-headed rabbitbrush
EndemicConservation concern
Basionym: Chrysothamnus monocephalus A. Nelson & P. B. Kennedy Proc. Biol. Soc. Wash. 19: 39. 1906
Synonyms: Chrysothamnus parryi subsp. monocephalus (A. Nelson & P. B. Kennedy) H. M. Hall & Clements
Treatment appears in FNA Volume 20. Treatment on page 74. Mentioned on page 52, 72.

Plants 5–40 cm (rigid). Leaves crowded, grayish; blades mostly 1-nerved, linear, 10–30 × 0.5–1.5 mm, faces sparsely to densely tomentulose, viscidulous; distalmost overtopping arrays. Heads 1–2(–4) at branch tips. Involucres 10–11 mm. Phyllaries 8–12, thinly chartaceous, apices erect to spreading, attenuate. Florets 5–7; corollas 8–9 mm, tubes sparsely strigose, throats gradually dilated, lobes 1.5–1.8 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Open subalpine forests, talus, and alpine barrens
Elevation: 2800–3700 m

Discussion

Of conservation concern.

Variety monocephala is known from the Sierra Nevada.

Selected References

None.

Lower Taxa

None.
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Nelson & P. B. Kennedy) G. L. Nesom & G. I. Baird +
Chrysothamnus monocephalus +
One-headed rabbitbrush +
Calif. +  and Nev. +
2800–3700 m +
Open subalpine forests, talus, and alpine barrens +
Flowering late summer–fall. +
Endemic +  and Conservation concern +
Chrysothamnus parryi subsp. monocephalus +
Ericameria parryi var. monocephala +
Ericameria parryi +
variety +