Castilleja angustifolia var. flavescens
Castilleja angustifolia var. dubia
northwestern Indian paintbrush
northwestern Indian paintbrush
hairs fairly dense, spreading, long, soft, with scattered, shorter, sometimes stipitate-glandular, ones.
hairs fairly dense, spreading, short and long, soft to stiff, eglandular.
distally yellow, yellow-orange, white, pink, reddish pink, or magenta, usually variable within a population, 3–5-lobed.
distally yellow to pale orange or white, sometimes red, 3–9-lobed, sometimes with secondary lobes.
27–32 mm.
18–27 mm.
21–28 mm;
abaxial clefts 7–8 mm, adaxial 7–12 mm.
18–22 mm;
abaxial clefts 5–7 mm, adaxial 7–8 mm.
Castilleja angustifolia var. flavescens
Castilleja angustifolia var. dubia
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.)
Variety dubia is often confused with Castilleja chromosa in herbaria, floras, and databases, but they are not synonymous. Where C. angustifolia and C. chromosa are sympatric in Wyoming, the specimens show little evidence of hybridization. Variety dubia, found primarily in southwestern South Dakota and east-central Wyoming, can be recognized by its usually narrower, yellow to pale orange inflorescences, as well as by its shorter corollas, while C. chromosa has wider, red inflorescences and longer corollas. Occasional hybrids between var. dubia and C. sessiliflora are known from northeastern Wyoming.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CalFlora
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
