familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
genusChylismia
sectionChylismia sect. Chylismia
speciesChylismia walkeri
subspeciesChylismia walkeri subsp. walkeri
Chylismia walkeri subsp. walkeri
Synonyms: Camissonia bolanderin. D. Atwood & S. L. Welsh C. dominguezescalanteorum N. D. Atwood L. C. Higgins & S. L. Welsh Oenothera multijuga var. orientalis Munz
Treatment appears in FNA Volume 10.
Leaves primarily cauline, rarely forming basal rosette; blade with only terminal lobe well developed, sometimes pinnately lobed, lateral lobes usually greatly reduced or absent. Flowers: floral tube 0.5–1.3 mm; sepals 1.5–2 mm; petals 1–3 mm; anthers 0.5–0.8 mm, glabrous; style 1.5–4 mm. Capsules: pedicel 5–15 mm. 2n = 14, 28.
Phenology: Flowering Apr–Jun.
Habitat: Loose slides of limestone and other sedimentaries, sandy washes.
Elevation: 900–1800 m.
Distribution
Ariz., Colo., N.Mex., Utah.
Discussion
Subspecies walkeri is nearly confined to the Colorado Plateau, known from Mesa County, Colorado, and Emery County, Utah, south to Montezuma County, Colorado, San Juan County, New Mexico, and central Coconino and northeastern Mohave counties, Arizona.
Selected References
None.
Lower Taxa
None.