Endemic
Synonyms: Castilleja zionis Eastwood
Treatment appears in FNA Volume 17. Treatment on page 655. Mentioned on page 654.

Stems green but appearing grayish from pubescence. Leaves green but appearing grayish from pubescence, 0(–5)-lobed, lobes spreading, lanceolate, sometimes linear-lanceolate. Bracts: distally bright red, sometimes orange-red; lobe apex acute to obtuse, sometimes expanded near tip. Calyces: lateral clefts 2–4 mm. Corollas: tube 11–24 mm; beak adaxially green.


Phenology: Flowering Mar–Sep.
Habitat: Sandy or rocky slopes, ledges, washes, sometimes on clay or cryptogamic soils, mostly sandstone.
Elevation: 1200–2800 m.

Distribution

Ariz., Colo., N.Mex., Utah.

Discussion

Variety scabrida inhabits sandstone-derived soils in high deserts and the surrounding mountains, in Utah and adjacent western Colorado as well as a handful of records from northeastern Arizona and northwestern New Mexico. Variety scabrida is related to, and often confused with, Castilleja chromosa, but the latter species is usually a sagebrush associate, while C. scabrida shows no special differences for Artemisia. Variety scabrida occasionally hybridizes with C. linariifolia.

Selected References

None.

Lower Taxa

None.
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
Eastwood +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
1200–2800 m. +
Sandy or rocky slopes, ledges, washes, sometimes on clay or cryptogamic soils, mostly sandstone. +
Flowering Mar–Sep. +
Bull. Torrey Bot. Club +
Castilleja zionis +
Castilleja scabrida var. scabrida +
Castilleja scabrida +
variety +