Camissoniopsis pallida

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. 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.

Distribution

w United States, nw Mexico.

Discussion

Subspecies 2 (2 in the flora).

P. H. Raven (1969) determined Camissoniopsis pallida to be self-compatible and primarily autogamous.

Selected References

None.

Lower Taxa

Camissoniopsis pallida subsp. hallii, Camissoniopsis pallida subsp. pallida

Key

1	Floral tube 1–3 mm; petals (2–)3.5–6(–8) mm; styles (2.1–)3–6.5 mm.	Camissoniopsis pallida subsp. pallida
1	Floral tube 3.8–4.2 mm; petals 6.5–13 mm; styles 6.5–10.5 mm.	Camissoniopsis pallida subsp. hallii