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Photo is of parent taxon

browneyes

Photo is of parent taxon

Yuma clavate fruit primrose

Habit Herbs glabrous or strigillose proximally, sometimes also glandular puberulent, usually glabrous distally, rarely very sparsely strigillose or glandular puberulent. Herbs strigillose, often densely so, sometimes also glandular puberulent distally.
Stems

6–55 cm.

5–40 cm.

Leaves

blade lateral lobes usually well developed, terminal lobe narrowly ovate, to 6 × 3.5 cm, margins irregularly sinuate-dentate.

blade lateral lobes poorly or well developed, terminal lobe lanceolate, to 6.5 × 2 cm, margins irregularly sinuate-dentate.

Flowers

opening at sunset;

buds with apical free tips less than 1 mm;

floral tube orange-brown inside, 3–5.5 mm;

petals usually white, very rarely pale yellow, sometimes purple-dotted near base, often fading purple, 3.5–8 mm.

opening at sunset;

buds usually without free tips, sometimes with apical free tips less than 1 mm;

floral tube orange-brown inside, 2.5–4 mm;

petals pale yellow, fading reddish or not changing color, 3–5 mm.

2n

= 14.

= 14.

Chylismia claviformis subsp. claviformis

Chylismia claviformis subsp. yumae

Phenology Flowering Mar–May. Flowering Feb–May.
Habitat Alluvial slopes and flats, with Ambrosia dumosa and Larrea. Very arid dunes and sandy flats, with Ambrosia dumosa and Larrea tridentata.
Elevation 800–1700 m. (2600–5600 ft.) 0–300 m. (0–1000 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
AZ; CA; Mexico (Baja California, Sonora)
[BONAP county map]
Discussion

Subspecies claviformis is known from western Inyo, eastern Kern, northern Los Angeles, western San Bernardino, and northern Riverside counties, almost entirely in the Mojave Desert. It intergrades widely and gradually with subspp. aurantiaca and funerea, and hybridizes with Chylismia brevipes subsp. brevipes.

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

Subspecies yumae is known from southeastern Imperial County, California, Yuma Desert, Arizona, and from El Gran Desierto to Puerto Peñasco in northwestern Sonora, and in northeastern Baja California. The subspecies is probably from hybridization between subspp. aurantiaca and peirsonii; it intergrades with subsp. aurantiaca and rarely hybridizes with Chylismia brevipes subsp. arizonica.

(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 claviformis Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia claviformis
Sibling taxa
C. claviformis subsp. aurantiaca, C. claviformis subsp. cruciformis, C. claviformis subsp. funerea, C. claviformis subsp. integrior, C. claviformis subsp. lancifolia, C. claviformis subsp. peeblesii, C. claviformis subsp. peirsonii, C. claviformis subsp. rubescens, C. claviformis subsp. yumae
C. claviformis subsp. aurantiaca, C. claviformis subsp. claviformis, C. claviformis subsp. cruciformis, C. claviformis subsp. funerea, C. claviformis subsp. integrior, C. claviformis subsp. lancifolia, C. claviformis subsp. peeblesii, C. claviformis subsp. peirsonii, C. claviformis subsp. rubescens
Synonyms Oenothera claviformis subsp. yumae, Camissonia claviformis subsp. yumae
Name authority unknown (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 207. (2007)
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