Flora of North America species comparison

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Ericameria parryi var. vulcanica

Ericameria parryi var. imula
Photo is of parent taxon

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

low rabbitbrush, Parry's rabbitbrush
Habit Plants 10–20 cm (branches slender). Plants 10–20 cm.
Leaves

moderately crowded, green;

blades 1(–3)-nerved, linear, 30–50 × 0.5–2 mm, faces glabrous, minutely gland-dotted;

distalmost about equaling arrays.

crowded, gray;

blades 1-nerved, spatulate to linear-spatulate, 10–15 × 2–3 mm, faces densely tomentose, eglandular;

distalmost not overtopping arrays.
Involucres

12.5–15 mm.

10–12 mm.
Florets

5–7;

corollas yellow, 9–11 mm, tubes glabrous or proximally puberulent, throats gradually dilated, lobes 1.5–1.9 mm.

10–18;

corollas 10–12 mm, tubes glabrous or sparsely villous, throats ± abruptly dilated, lobes 1.4–1.5 mm.
Phyllaries

9–13, chartaceous, apices erect (tan or greenish), attenuate.

ca. 16, chartaceous, apices erect (outer sometimes herbaceous, reddish), abruptly acute.
Heads

6–20+ in lax (much-branched), racemiform to thyrsiform arrays.

usually 3–5 in ± racemiform arrays.
2n

= 18.

= 18.

Ericameria parryi var. vulcanica

Ericameria parryi var. imula
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Sandy soils, rocky slopes and sagebrush flats Dry flats and yellow-pine forests
Elevation 1400–3200 m (4600–10500 ft) 2000–2200 m (6600–7200 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Variety vulcanica grows in the southern Sierra Nevada.

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

Variety imula is known only from southern San Bernardino County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 75. FNA vol. 20, p. 73.
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. parryi, E. parryi var. salmonensis
E. parryi var. affinis, E. parryi var. aspera, E. parryi var. attenuata, E. parryi var. howardii, 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
Synonyms Chrysothamnus vulcanicus, Chrysothamnus parryi subsp. vulcanicus Chrysothamnus parryi subsp. imulus
Name authority (Greene) G. L. Nesom & G. I. Baird: Phytologia 75: 89. (1993) (H. M. Hall & Clements) 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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