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Photo is of parent taxon

Arizona sun cup

Photo is of parent taxon

pale sun cup

Habit Herbs slender, often branched distally, villous, sometimes also strigillose, at least distally. Herbs slender, usually branched distally, usually strigillose, sometimes also villous proximally.
Flowers

buds individually reflexed, without free tips or with apical free tips less than 1 mm;

floral tube orange-brown inside, 3–5 mm;

petals often with red dots at base, often fading reddish, 3–8 mm;

anthers 2.5–5 mm.

buds not individually reflexed, without free tips or with apical free tips less than 1 mm;

floral tube yellow inside, 4–5 mm;

petals often with red dots near base, fading yellow to orange, 7–12 mm;

anthers 4–6 mm.

Capsules

18–60 mm;

pedicel 2.5–5 mm.

20–42 mm;

pedicel 2–10 mm.

2n

= 14.

= 14.

Chylismia brevipes subsp. arizonica

Chylismia brevipes subsp. pallidula

Phenology Flowering Feb–Apr. Flowering Mar–May.
Habitat Rocky slopes, flats. Dry flats, desert pavement, with Ambrosia dumosa and Larrea.
Elevation 70–300 m. (200–1000 ft.) 70–1100 m. (200–3600 ft.)
Distribution
from FNA
AZ; CA
[BONAP county map]
from FNA
AZ; CA; NV; UT
[BONAP county map]
Discussion

Subspecies arizonica is known from Yuma County, Arizona, and eastern Imperial County, California. It hybridizes with Chylismia claviformis subspp. peeblesii, rubescens, and yumae.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies pallidula occurs in the Sonoran and Mojave deserts from Washington County, Utah, to southeastern Inyo County, California, south to Riverside County, California, Mohave County, Arizona, and Clark County, Nevada. It hybridizes with Chylismia claviformis subspp. aurantiaca and peeblesii, as well as with C. multijuga.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia brevipes Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia brevipes
Sibling taxa
C. brevipes subsp. brevipes, C. brevipes subsp. pallidula
C. brevipes subsp. arizonica, C. brevipes subsp. brevipes
Synonyms Oenothera brevipes subsp. arizonica, Camissonia brevipes subsp. arizonica Oenothera brevipes var. pallidula, Camissonia brevipes subsp. pallidula, O. brevipes subsp. pallidula, O. pallidula
Name authority (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007) (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 206. (2007)
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