Camissoniopsis pallida |
Camissoniopsis pallida subsp. pallida |
|||||
---|---|---|---|---|---|---|
pale yellow sun cup |
pale sun cup |
|||||
Habit | Herbs annual, appearing conspicuously grayish, densely strigillose, sometimes also glandular puberulent distally. | |||||
Stems | usually with decumbent lateral branches from basal rosette, 5–60 cm. |
|||||
Leaves | 1–5(–11) × 0.2–0.7(–1.4) cm; petiole 0–0.2(–0.4) cm, distal ones sessile; blade lanceolate to narrowly ovate, base often cuneate to truncate, sometimes attenuate, margins sparsely denticulate, apex acute to obtuse. |
|||||
Flowers | opening near sunrise; floral tube 1–4.2 mm; sepals (1.5–)2.5–8 mm; petals yellow, sometimes with 1–3 red dots basally, (2–)3.5–13 mm; episepalous filaments (0.5–)1.5–6.5 mm, epipetalous filaments (0.2–)0.5–3.8 mm, anthers (0.4–)0.8–2.2 mm, less than 5% of pollen grains 4- or 5-pored; style (2.1–)3–10.5 mm, stigma surrounded by at least anthers of longer stamens, often by both sets, at anthesis. |
floral tube 1–3 mm; sepals (1.5–)2.5–5.5 mm; petals rarely with red dots basally, (2–)3.5–6(–8) mm; episepalous filaments (0.5–)1.5–4 mm, epipetalous filaments (0.2–)0.5–2.2 mm, anthers (0.4–)0.8–1.2 mm; style (2.1–)3–6.5 mm. |
||||
Capsules | usually 1–3-coiled spiral, subterete in living material, 4-angled when dry, 13–24 × 0.7–1.2 mm. |
|||||
Seeds | 1–1.5 mm. |
|||||
2n | = 14. |
|||||
Camissoniopsis pallida |
Camissoniopsis pallida subsp. pallida |
|||||
Phenology | Flowering (Jan–)Mar–Aug(–Nov). | |||||
Habitat | Desert slopes and flats, along washes, creosote bush scrub, Joshua tree woodlands. | |||||
Elevation | 30–1900 m. (100–6200 ft.) | |||||
Distribution | w United States; nw Mexico
|
AZ; CA; NV; Mexico (Baja California) |
||||
Discussion | Subspecies 2 (2 in the flora). P. H. Raven (1969) determined Camissoniopsis pallida to be self-compatible and primarily autogamous. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies pallida occurs from the head of the San Joaquin Valley in Ventura and Kern counties, California, across the Colorado and Mojave deserts, north to the vicinity of Independence, Inyo County, California, and Esmeralda County, Nevada (the only member of the genus in Nevada), east to Mohave and Yavapai counties, Arizona, and also in the vicinity of Tucson, Pima County; also south along the eastern side of Baja California to the Sierra de San Borjas, Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 10. | FNA vol. 10. | ||||
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis | Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis > Camissoniopsis pallida | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Sphaerostigma pallidum, Camissonia pallida, Oenothera abramsii, O. micrantha var. abramsii | Oenothera hirta var. exfoliata, O. micrantha var. exfoliata, Sphaerostigma micranthum var. exfoliatum | ||||
Name authority | (Abrams) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007) | unknown | ||||
Web links |
|
|