Flora of North America species comparison

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Ericameria parryi var. aspera

Ericameria parryi var. monocephala
Photo is of parent taxon

rough Parry's rabbitbrush, rough rabbitbrush
Photo is of parent taxon

one-head rabbitbrush, Parry's rabbitbrush
Habit Plants 15–70 cm. Plants 5–40 cm (rigid).
Leaves

moderately crowded, gray-green;

blades 1-nerved, oblanceolate, 15–50 × 1–3 mm, faces abundantly stipitate-glandular;

distalmost ± equaling arrays.

crowded, grayish;

blades mostly 1-nerved, linear, 10–30 × 0.5–1.5 mm, faces sparsely to densely tomentulose, viscidulous;

distalmost overtopping arrays.
Involucres

11–15 mm.

10–11 mm.
Florets

5–10;

corollas yellow, 8.3–9.5 mm, tubes sparsely hairy, throats gradually dilated, lobes 1.4–1.7 mm.

5–7;

corollas 8–9 mm, tubes sparsely strigose, throats gradually dilated, lobes 1.5–1.8 mm.
Phyllaries

9–13, whitish, tan, or purplish, apices erect to spreading, acute.

8–12, thinly chartaceous, apices erect to spreading, attenuate.
Heads

4–10+ in (sometimes branched) racemiform arrays.

1–2(–4) at branch tips.
2n

= 18.

= 18.

Ericameria parryi var. aspera

Ericameria parryi var. monocephala
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Dry forests to alpine barrens in pumice or gravel Open subalpine forests, talus, and alpine barrens
Elevation 1900–3300 m (6200–10800 ft) 2800–3700 m (9200–12100 ft)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Of conservation concern.

Variety monocephala is known from the Sierra Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 73. FNA vol. 20, p. 74.
Parent taxa Asteraceae > tribe Astereae > Ericameria > Ericameria parryi Asteraceae > tribe Astereae > Ericameria > Ericameria parryi
Sibling taxa
E. parryi var. affinis, E. parryi var. attenuata, E. parryi var. howardii, E. parryi var. imula, E. parryi var. latior, E. parryi var. monocephala, E. parryi var. montana, E. parryi var. nevadensis, E. parryi var. parryi, E. parryi var. salmonensis, E. parryi var. vulcanica
E. parryi var. affinis, E. parryi var. aspera, E. parryi var. attenuata, E. parryi var. howardii, E. parryi var. imula, E. parryi var. latior, E. parryi var. montana, E. parryi var. nevadensis, E. parryi var. parryi, E. parryi var. salmonensis, E. parryi var. vulcanica
Synonyms Chrysothamnus asper, Chrysothamnus parryi subsp. asper Chrysothamnus monocephalus, Chrysothamnus parryi subsp. monocephalus
Name authority (Greene) G. L. Nesom & G. I. Baird: Phytologia 75: 88. (1993) (A. Nelson & P. B. Kennedy) G. L. Nesom & G. I. Baird: Phytologia 75: 89. (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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