Flora of North America species comparison

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Castilleja angustifolia var. flavescens
Castilleja angustifolia var. flavescens

northwestern Indian paintbrush
Stems

hairs fairly dense, spreading, long, soft, with scattered, shorter, sometimes stipitate-glandular, ones.
Bracts

distally yellow, yellow-orange, white, pink, reddish pink, or magenta, usually variable within a population, 3–5-lobed.
Corollas

27–32 mm.
Calyces

21–28 mm;

abaxial clefts 7–8 mm, adaxial 7–12 mm.

Castilleja angustifolia var. flavescens
Phenology Flowering (Mar–)Apr–Jul.
Habitat Dry sagebrush slopes and flats, often rocky.
Elevation 2100–3100 m. (6900–10200 ft.)
Distribution
from FNA
ID; NV; UT
[BONAP county map]
Discussion

Most plants of var. flavescens have yellow to pale orange inflorescences, but in some populations, such as near Wells, Nevada, the inflorescence can vary to pink, reddish pink, white, or magenta. Variety flavescens is associated with Artemisia arbuscula, its likely host plant, and is often found at higher elevations than Castilleja chromosa (N. H. Holmgren 1984). The variety is found in southeastern Idaho, eastern Nevada, and western Utah. Recent collections from extreme eastern Mono and Modoc counties suggest that var. flavescens may also occur in California, but the identity of these populations has yet to be fully verified.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 587.
Parent taxa Orobanchaceae > Castilleja > Castilleja angustifolia
Sibling taxa
C. angustifolia var. angustifolia, C. angustifolia var. dubia
Synonyms C. flavescens
Name authority (Pennell ex Edwin) N. H. Holmgren: in A. Cronquist et al., Intermount. Fl. 4: 488. (1984)
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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