Flora of North America species comparison

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Ericameria parryi var. monocephala

Ericameria parryi var. salmonensis
Photo is of parent taxon

one-head rabbitbrush, Parry's rabbitbrush
Photo is of parent taxon

Parry's rabbitbrush, Salmon River rabbitbrush
Habit Plants 5–40 cm (rigid). Plants 30–60 cm.
Leaves

crowded, grayish;

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

distalmost overtopping arrays.

widely spaced, green;

blades 1-nerved, linear to narrowly oblanceolate, 30–50(–80) × 1–2(–3) mm, faces glabrous, viscidulous;

distalmost overtopping arrays.
Involucres

10–11 mm.

10–12 mm.
Florets

5–7;

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

(4–)5–6;

corollas pale yellow, 7.5–10 mm, tubes distally puberulent, throats gradually dilated, lobes 1–1.5 mm.
Phyllaries

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

(11–)13–17(–19), chartaceous, outer herbaceous-tipped, apices erect, acuminate (glabrous, viscidulous).
Heads

1–2(–4) at branch tips.

usually 4–8 in lax (much branched), racemiform to cymiform-paniculiform arrays.
2n

= 18.

= 18.

Ericameria parryi var. monocephala

Ericameria parryi var. salmonensis
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Open subalpine forests, talus, and alpine barrens Barren, rocky soils
Elevation 2800–3700 m (9200–12100 ft) 1400–1800 m (4600–5900 ft)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
ID
[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.)

Variety salmonensis grows along the Middle Fork of the Salmon River and its tributaries.

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