Flora of North America species comparison

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Chylismia claviformis subsp. aurantiaca
Photo is of parent taxon

pinnate leaf primrose
Habit Herbs strigillose, especially proximally, sometimes glabrate distally.
Stems

5–50 cm.
Leaves

blade sometimes purple-dotted, lateral lobes irregular, well developed, terminal lobe narrowly ovate, to 3 × 1.5 cm, margins irregularly sinuate-dentate.
Flowers

opening at sunset;

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

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

petals white, rarely purple-dotted at base, often fading purple, rarely orange, 2.5–8 mm.
2n

= 14.

Chylismia claviformis subsp. aurantiaca
Phenology Flowering (Dec–)Feb–Jun.
Habitat Sandy flats, washes, with Ambrosia dumosa, Fouquieria splendens, and Larrea.
Elevation -70–1100 m. (-200–3600 ft.)
Distribution
from FNA
AZ; CA; NV; Mexico (Baja California)
[BONAP county map]
Discussion

Subspecies aurantiaca is known from Lincoln County, Nevada, south through southeastern California to northeasternmost Baja California, and in Arizona only in westernmost Mohave and Yuma counties. It intergrades extensively with subspp. peirsonii and yumae, and those with white petals (subspp. claviformis, funerea, integrior, and peeblesii); it sometimes hybridizes with Chylismia brevipes subspp. brevipes and pallidula, and with C. munzii.

The name Oenothera scapoidea var. aurantiaca S. Watson is superfluous because Watson included O. claviformis Torrey & Frémont as a synonym, which is the basionym of O. scapoidea var. claviformis (Torrey & Frémont) S. Watson. Likewise, Chylismia scapoidea (Torrey & A. Gray) Nuttall ex Raimann var. aurantiaca Davidson & Moxley is also an illegitimate name that pertains here.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia claviformis
Sibling taxa
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. yumae
Synonyms Oenothera claviformis var. aurantiaca, Camissonia claviformis subsp. aurantiaca, C. claviformis var. aurantiaca, C. aurantiaca, O. claviformis subsp. aurantiaca
Name authority (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 206. (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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