Chylismia claviformis subsp. aurantiaca |
Chylismia claviformis subsp. cruciformis |
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pinnate leaf primrose |
browneyes, cross-flower evening primrose, cruciform evening-primrose |
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Habit | Herbs strigillose, especially proximally, sometimes glabrate distally. | Herbs strigillose or glandular puberulent proximally, glandular puberulent or glabrous distally. |
Stems | 5–50 cm. |
3–55 cm. |
Leaves | blade sometimes purple-dotted, lateral lobes irregular, well developed, terminal lobe narrowly ovate, to 3 × 1.5 cm, margins irregularly sinuate-dentate. |
blade lateral lobes well developed, few to numerous, terminal lobe narrowly ovate to subcordate, to 8 × to 4 cm, margins serrate-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. |
opening at sunrise; buds without free tips, sometimes with apical free tips less than 1 mm; floral tube yellow or orange-brown inside, 2–6.5 mm; petals bright yellow, sometimes red-dotted in proximal 1/2, often fading purple, 2.5–8 mm. |
2n | = 14. |
= 14. |
Chylismia claviformis subsp. aurantiaca |
Chylismia claviformis subsp. cruciformis |
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Phenology | Flowering (Dec–)Feb–Jun. | Flowering Mar–May. |
Habitat | Sandy flats, washes, with Ambrosia dumosa, Fouquieria splendens, and Larrea. | Sandy or clay flats and slopes, with Artemisia tridentata, Ericameria, Grayia spinosa, or Purshia tridentata. |
Elevation | -70–1100 m. (-200–3600 ft.) | 600–1500 m. (2000–4900 ft.) |
Distribution |
AZ; CA; NV; Mexico (Baja California) |
CA; ID; NV; OR |
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.) |
Subspecies cruciformis is known from Lassen County, California, western Canyon and Owyhee counties, Idaho, Harney, Lake, and Malheur counties, Oregon, and central and southern Washoe County, Nevada. It intergrades with subsp. integrior. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 10. | FNA vol. 10. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Oenothera claviformis var. aurantiaca, Camissonia claviformis subsp. aurantiaca, C. claviformis var. aurantiaca, C. aurantiaca, O. claviformis subsp. aurantiaca | Oenothera cruciformis, Camissonia claviformis subsp. cruciformis, C. claviformis var. cruciformis, Chylisma cruciformis, C. scapoidea var. cruciformis, O. claviformis subsp. citrina, O. claviformis subsp. cruciformis, O. claviformis var. cruciformis |
Name authority | (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 206. (2007) | (Kellogg) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 206. (2007) |
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