Flora of North America species comparison

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Ericameria parryi var. attenuata
Photo is of parent taxon

narrow-bract rabbitbrush, Parry's rabbitbrush
Habit Plants 20–60 cm.
Leaves

moderately crowded, green;

blades 1-nerved, linear, 20–40 × ca. 1 mm, faces glabrous or sparsely hairy, eglandular, somewhat viscid;

distalmost shorter than arrays.
Involucres

11–12.5 mm.
Florets

5–7;

corollas clear yellow, 10–11 mm, tubes glabrous, throats gradually dilated, lobes 1.5–2 mm.
Phyllaries

13–22, apices erect, attenuate.
Heads

5–10 in compact, racemiform arrays.
2n

= 18.

Ericameria parryi var. attenuata
Phenology Flowering late summer–fall.
Habitat Mountain slopes, dry, stony soils, sagebrush, pinyon-juniper, ponderosa pine, and aspen communities
Elevation 1700–3000 m (5600–9800 ft)
Distribution
from FNA
CO; NM; UT
[BONAP county map]
Discussion

S. L. Welsh et al. (1987) noted that characteristics used to distinguish var. howardii from var. attenuata (distalmost leaves overtopping arrays and pale-colored florets) fail as diagnostic features for plants from Utah.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 73.
Parent taxa Asteraceae > tribe Astereae > Ericameria > Ericameria parryi
Sibling taxa
E. parryi var. affinis, E. parryi var. aspera, 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
Synonyms Bigelowia howardii var. attenuata, Chrysothamnus parryi subsp. attenuatus
Name authority (M. E. Jones) G. L. Nesom & G. I. Baird: Phytologia 75: 88. (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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