Flora of North America species comparison

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Camissoniopsis ignota

jurupa hills sun cup
Habit 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.

Camissoniopsis ignota
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. (300–3600(–4900) ft.)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
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.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis
Sibling taxa
C. bistorta, C. cheiranthifolia, C. confusa, C. guadalupensis, C. hardhamiae, C. hirtella, C. intermedia, C. lewisii, C. luciae, C. micrantha, C. pallida, C. robusta
Synonyms Oenothera micrantha var. ignota, Camissonia ignota, O. hirta var. ignota, O. ignota
Name authority (Jepson) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (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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