The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links
Photo is of parent taxon
Photo is of parent taxon

Yuma clavate fruit primrose

Habit Herbs villous, at least proximally, also glandular puberulent. Herbs strigillose, often densely so, sometimes also glandular puberulent distally.
Stems

5–40 cm.

5–40 cm.

Leaves

blade lateral lobes poorly developed, small or absent, terminal lobe lanceolate, to 4 × 2 cm, margins irregularly 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 conspicuous, subapical free tips;

floral tube orange-brown inside, 3.5–5 mm;

petals yellow, fading brick red, 3–5 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. rubescens

Chylismia claviformis subsp. yumae

Phenology Flowering Mar–Apr. Flowering Feb–May.
Habitat Sandy flats, with Ambrosia dumosa, Carnegiea gigantea, and Larrea. Very arid dunes and sandy flats, with Ambrosia dumosa and Larrea tridentata.
Elevation 60–400 m. (200–1300 ft.) 0–300 m. (0–1000 ft.)
Distribution
from FNA
AZ; Mexico (Sonora)
[BONAP county map]
from FNA
AZ; CA; Mexico (Baja California, Sonora)
[BONAP county map]
Discussion

Subspecies rubescens is known from western Maricopa, eastern Pima, and southeastern Yuma counties, Arizona, and northwestern Sonora. It intergrades with subsp. peeblesii and hybridizes with Chylismia brevipes subsp. arizonica.

(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. 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. 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. rubescens, Camissonia claviformis subsp. rubescens Oenothera claviformis subsp. yumae, Camissonia claviformis subsp. yumae
Name authority (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 207. (2007) (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 207. (2007)
Web links