Keckiella breviflora var. glabrisepala
in A. Cronquist et al., Intermount. Fl. 4: 369. 1984.
Endemic
Basionym: Penstemon breviflorus subsp. glabrisepalus D. D. Keck Madroño 3: 207. 1936
Synonyms: Keckiella breviflora subsp. glabrisepala (D. D. Keck) Straw
Calyces glabrous.
Phenology: Flowering May–Jul.
Habitat: Rocky slopes, forests, chaparral.
Elevation: 100–2700 m.
Discussion
Putative hybrids between var. glabrisepala and Keckiella lemmonii were first reported by D. D. Keck (1936) based on staminode indument. The same characteristics are found in this variety in Alpine County, California, outside the current range of K. lemmonii, suggesting potential widespread introgression (D. C. Michener 1982).
An 1887 collection by E. Palmer (71, Los Angeles Bay, Gulf of California, Lower California, NY) seems misplaced as to location.
Selected References
None.
Lower Taxa
None.