Flora of North America species comparison

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Chylismia claviformis subsp. yumae

Chylismia claviformis subsp. rubescens
Photo is of parent taxon

Yuma clavate fruit primrose
Photo is of parent taxon
Habit Herbs strigillose, often densely so, sometimes also glandular puberulent distally. Herbs villous, at least proximally, also glandular puberulent.
Stems

5–40 cm.

5–40 cm.
Leaves

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

blade lateral lobes poorly developed, small or absent, terminal lobe lanceolate, to 4 × 2 cm, margins irregularly dentate.
Flowers

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.

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.
2n

= 14.

= 14.

Chylismia claviformis subsp. yumae

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

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.)

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.)
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. rubescens
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
Synonyms Oenothera claviformis subsp. yumae, Camissonia claviformis subsp. yumae Oenothera claviformis subsp. rubescens, Camissonia claviformis subsp. rubescens
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 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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