Camissoniopsis ignota

(Jepson) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 205. 2007.

Basionym: Oenothera micrantha var. ignota Jepson Man. Fl. Pl. Calif., 684. 1925
Synonyms: Camissonia ignota (Jepson) P. H. Raven O. hirta var. ignota (Jepson) Munz O. ignota (Jepson) Munz
Treatment appears in FNA Volume 10.

Herbs annual, strigillose, usually also sparsely villous, often also glandular puberulent distally. Stems arising from base, usually decumbent, rarely with only 1, erect stem, 10–55 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. 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. 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. Seeds 1.2–1.3 mm. 2n = 14.


Phenology: Flowering (Jan–)Mar–Apr(–Aug).
Habitat: Clay or sandy soils, flats and slopes in coastal sage scrub or chap­arral, sandy soils in mountains.
Elevation: 100–1100(–1500) m.

Distribution

Calif., Mexico (Baja California).

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.

Selected References

None.

Lower Taxa

None.
... more about "Camissoniopsis ignota"
Warren L. Wagner +
(Jepson) W. L. Wagner & Hoch +
Oenothera micrantha var. ignota +
Calif. +  and Mexico (Baja California). +
100–1100(–1500) m. +
Clay or sandy soils, flats and slopes in coastal sage scrub or chaparral, sandy soils in mountains. +
Flowering (Jan–)Mar–Apr(–Aug). +
Syst. Bot. Monogr. +
Camissonia ignota +, O. hirta var. ignota +  and O. ignota +
Camissoniopsis ignota +
Camissoniopsis +
species +