Chylismia claviformis subsp. peeblesii

(Munz) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 206. 2007.

Basionym: Oenothera claviformis var. peeblesii Munz Leafl. W. Bot. 2: 158. 1939
Synonyms: Camissonia claviformis subsp. peeblesii (Munz) P. H. Raven O. claviformis subsp. peeblesii (Munz) P. H. Raven
Treatment appears in FNA Volume 10.

Herbs glandular puberulent and strigillose. Stems 5–60 cm. Leaves: blade lateral lobes irregular, well developed, terminal lobe narrowly ovate, to 7 × 3 cm, margins irregularly sinuate-dentate. Flowers opening at sunset; buds without free tips; floral tube orange-brown inside, 3–5.5 mm; petals white, often fading purple, 3–7.5 mm. 2n = 14.


Phenology: Flowering (Dec–)Jan–Apr.
Habitat: Flat, sandy plains, washes, with Ambrosia dumosa, Carnegiea gigantea, Larrea tridentata, and Prosopis.
Elevation: 100–700 m.

Distribution

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

Discussion

Subspecies peeblesii is known throughout almost all the southwestern half of Arizona and locally in northwesternmost Sonora, and was recently collected in Grant and Hildago counties in New Mexico. It intergrades with subspp. aurantiaca and rubescens, and hybridizes with all subspecies of Chylismia brevipes.

Selected References

None.

Lower Taxa

None.
Warren L. Wagner +
(Munz) W. L. Wagner & Hoch +
Oenothera claviformis var. peeblesii +
Ariz. +, N.Mex. +  and Mexico (Sonora). +
100–700 m. +
Flat, sandy plains, washes, with Ambrosia dumosa, Carnegiea gigantea, Larrea tridentata, and Prosopis. +
Flowering (Dec–)Jan–Apr. +
Syst. Bot. Monogr. +
Camissonia claviformis subsp. peeblesii +  and O. claviformis subsp. peeblesii +
Chylismia claviformis subsp. peeblesii +
Chylismia claviformis +
subspecies +