Illustrated
Treatment appears in FNA Volume 17. Treatment on page 630. Mentioned on page 627, 631.

Herbs 7.2 dm. Stems: hairs fairly short, soft, moderately to densely stipitate-glandular. Leaves linear or linear-lanceolate, soft, margins plane. Bracts distally red, linear to linear-lanceolate, apex acuminate. Calyces 13–21 mm; abaxial clefts 9–11 mm, adaxial 6–8 mm, clefts 40–75% of calyx length, lateral 3–4 mm, 15–25% of calyx length; lobes linear, apex acuminate. Corollas 14–21(–30) mm; beak included to more often partially exserted from calyces, adaxially yellow to greenish, 5–8 mm; abaxial lip red to reddish purple.


Phenology: Flowering Apr–Sep.
Habitat: Wet, sometimes alkaline sites, including marshes, hot springs, seeps, stream banks.
Elevation: 700–2500 m.

Distribution

Ariz., N.Mex., Mexico (Chihuahua, Sonora).

Discussion

Variety minor is found in central and southeastern Arizona and adjacent New Mexico southward into northern Chihuahua and Sonora, Mexico. Compared to similar var. exilis, plants of var. minor tend to be more slender, with narrower, softer-textured, linear-acuminate leaves, red-purple abaxial corolla lips, and with less dense and less conspicuous stem pubescence.

Selected References

None.

Lower Taxa

None.
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
(A. Gray) A. Gray +
Castilleja affinis var. minor +
Ariz. +, N.Mex. +, Mexico (Chihuahua +  and Sonora). +
700–2500 m. +
Wet, sometimes alkaline sites, including marshes, hot springs, seeps, stream banks. +
Flowering Apr–Sep. +
in W. H. Brewer et al., Bot. California +
Illustrated +
Euchroma +  and Oncorhynchus +
Castilleja minor var. minor +
Castilleja minor +
variety +