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.
Warren L. Wagner +
A. Nelson +
Oenothera +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
900–1800 m. +
Loose slides of limestone and other sedimentaries, sandy washes. +
Flowering Apr–Jun. +
Camissonia bolanderin. +, C. dominguezescalanteorum +  and Oenothera multijuga var. orientalis +
Chylismia walkeri subsp. walkeri +
Chylismia walkeri +
subspecies +