Camissoniopsis ignota |
Camissoniopsis lewisii |
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jurupa hills sun cup |
Lewis' evening-primrose |
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Habit | Herbs annual, strigillose, usually also sparsely villous, often also glandular puberulent distally. | Herbs annual, villous, also glandular puberulent distally. |
Stems | arising from base, usually decumbent, rarely with only 1, erect stem, 10–55 cm. |
usually several, decumbent, rarely 1 erect stem, 30–60 cm. |
Leaves | 1.5–7 × 0.3–1.3 cm; petiole (0–)0.2–2.5 cm, petiolate distally; blade narrowly lanceolate, lanceolate, or narrowly elliptic, base attenuate, margins serrulate, apex acute. |
1–8 × 0.2–1.1 cm; petiole 0–3 cm; blade narrowly lanceolate-elliptic, base cuneate or subcordate, margins denticulate, apex acute. |
Flowers | opening near sunrise; floral tube (1.1–)1.8–3 mm; sepals 2.6–5.5 mm; petals yellow, sometimes red-dotted near base, (3–)4–8 mm; episepalous filaments (1.2–)2.5–3.6 mm, epipetalous filaments (1–)1.3–2 mm, anthers (0.6–)0.8–1.6 mm, less than 5% of pollen grains 4- or 5-pored; style (3–)4.5–7 mm, stigma surrounded by anthers at anthesis. |
opening near sunrise; floral tube 1.5–4 m; sepals 1.7–3.4 mm; petals yellow, with 1 or 2 red dots basally, 2.5–5.5 mm; episepalous filaments 2–2.8 mm, epipetalous filaments 1–1.7 mm, anthers 0.7–1.2 mm, less than 5% of pollen grains 4- or 5-pored; style 2.8–4.5 mm, stigma surrounded by anthers at anthesis. |
Capsules | very slender, usually much contorted, irregularly to 5-coiled, rarely simply flexuous, terete in living material, 4-angled when dry, 20–30 × 0.8–1 mm. |
usually loosely 1-coiled, conspicuously 4-angled in living material, 13–20 × 1.8–2.2 mm. |
Seeds | 1.2–1.3 mm. |
0.7–0.8 mm. |
2n | = 14. |
= 14. |
Camissoniopsis ignota |
Camissoniopsis lewisii |
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Phenology | Flowering (Jan–)Mar–Apr(–Aug). | Flowering Mar–May(–Sep). |
Habitat | Clay or sandy soils, flats and slopes in coastal sage scrub or chaparral, sandy soils in mountains. | Open sandy and clayey grasslands, coastal dunes and beaches. |
Elevation | 100–1100(–1500) m. (300–3600(–4900) ft.) | 0–300 m. (0–1000 ft.) |
Distribution |
CA; Mexico (Baja California)
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CA; Mexico (Baja California)
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Discussion | Camissoniopsis ignota is most common in clay fields and slopes at low elevations, but occasional on sandy soil and higher in the mountains in the Coast Ranges and bordering valleys from Yolo County, California, south to the southern end of the Sierra San Miguel, in Baja California, usually away from the immediate coast and barely reaching the margins of the desert. P. H. Raven (1969) determined C. ignota to be self-compatible and primarily autogamous. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Camissoniopsis lewisii occurs from Point Dume and the Los Angeles Basin, Los Angeles County, south to Cardon Grande at the northern edge of Baja California Sur. P. H. Raven (1969) determined C. lewisii to be self-compatible and primarily autogamous, and suggested that this coastal Camissoniopsis may have been derived more or less directly from coastal populations of C. bistorta. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 10. | FNA vol. 10. |
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis | Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis |
Sibling taxa | ||
Synonyms | Oenothera micrantha var. ignota, Camissonia ignota, O. hirta var. ignota, O. ignota | Camissonia lewisii |
Name authority | (Jepson) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007) | (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007) |
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