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pale yellow sun cup

Santa Lucia sun cup

Habit Herbs annual, appearing conspicuously grayish, densely strigillose, sometimes also glandular puberulent distally. Herbs annual, villous throughout.
Stems

usually with decumbent lateral branches from basal rosette, 5–60 cm.

erect or ascending, 20–50 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.

1.3–5.5 × 1.2–2.5 cm;

sessile;

blade lanceolate to narrowly oblong, base rounded or truncate, sometimes cuneate, margins sparsely denticulate, apex acuminate to, sometimes, rounded.

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.

opening near sunrise;

floral tube 2–3 mm;

sepals 2.5–4.5 mm;

petals yellow, with 1 red dot basally, 4–7 mm, sometimes with a tooth arising from emarginate apex; episepalous filaments 4-pored;

s2–6 mm, epipetalous filaments 0.8–1.6 mm, anthers 0.4–1 mm, 25–60% of pollen grains tyle 3–6 mm, stigma surrounded by anthers at anthesis.

Capsules

usually 1–3-coiled spiral, subterete in living material, 4-angled when dry, 13–24 × 0.7–1.2 mm.

straight or 1.5–2+-coiled spiral, subterete in living material, obscurely 4-angled when dry, 15–20 × 1.3–2 mm.

Seeds

1–1.5 mm.

1.3–1.5 mm.

2n

= 42.

Camissoniopsis pallida

Camissoniopsis luciae

Phenology Flowering Apr–May(–Jul).
Habitat Openings in chaparral.
Elevation 300–1400 m. (1000–4600 ft.)
Distribution
w United States; nw Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
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.)

Camissoniopsis luciae is known from the Santa Lucia Mountains, Monterey County, and scattered southward to San Benito, San Luis Obispo, and Santa Barbara counties. P. H. Raven (1969) determined C. luciae to be self-compatible and primarily autogamous. The species is a hexaploid that parallels the widespread diploid C. hirtella in the variable notching of its petals. Presumably, it has been derived from the tetraploid C. intermedia (2n = 28) and the diploid C. hirtella (2n = 14), but it is rather easily separated from both by the absence of glandular hairs in the inflorescence, relatively large flowers, and pollen characteristics.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Floral tube 1–3 mm; petals (2–)3.5–6(–8) mm; styles (2.1–)3–6.5 mm.
subsp. pallida
1. Floral tube 3.8–4.2 mm; petals 6.5–13 mm; styles 6.5–10.5 mm.
subsp. hallii
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis
Sibling taxa
C. bistorta, C. cheiranthifolia, C. confusa, C. guadalupensis, C. hardhamiae, C. hirtella, C. ignota, C. intermedia, C. lewisii, C. luciae, C. micrantha, C. robusta
C. bistorta, C. cheiranthifolia, C. confusa, C. guadalupensis, C. hardhamiae, C. hirtella, C. ignota, C. intermedia, C. lewisii, C. micrantha, C. pallida, C. robusta
Subordinate taxa
C. pallida subsp. hallii, C. pallida subsp. pallida
Synonyms Sphaerostigma pallidum, Camissonia pallida, Oenothera abramsii, O. micrantha var. abramsii Camissonia luciae
Name authority (Abrams) 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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