Flora of North America species comparison

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Ericameria parryi var. parryi

Ericameria parryi var. monocephala
Photo is of parent taxon

Parry's rabbitbrush
Photo is of parent taxon

one-head rabbitbrush, Parry's rabbitbrush
Habit Plants 30–100 cm. Plants 5–40 cm (rigid).
Leaves

usually crowded, green;

blades 3-nerved (only midnerves prominent), linear, 30–80 × 2–3 mm, faces glabrous or puberulent, often minutely stipitate-glandular, ± resinous;

distalmost overtopping 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

9–12 mm.

10–11 mm.
Florets

8–20;

corollas yellow, 7.9–10 mm, tubes sparsely hairy, throats gradually dilated, lobes 1.4–2.1 mm.

5–7;

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

10–15, mostly chartaceous, outermost sometimes herbaceous-tipped, apices erect, attenuate.

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

usually 5–12+ in racemiform arrays.

1–2(–4) at branch tips.
2n

= 18.

= 18.

Ericameria parryi var. parryi

Ericameria parryi var. monocephala
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Open, dry hillsides and plains Open subalpine forests, talus, and alpine barrens
Elevation 2000–2900 m (6600–9500 ft) 2800–3700 m (9200–12100 ft)
Distribution
from FNA
CO; NM; NV; UT; WY
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Variety parryi is widespread in the Rocky Mountain region.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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. 75. 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. 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. 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 monocephalus, Chrysothamnus parryi subsp. monocephalus
Name authority unknown (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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