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little sun cup, little wiry sun cup

Great Basin suncup, Lewis River suncup, tiny sun cup

Habit Herbs glandular puberulent and villous. Herbs usually glabrous or densely strigillose, rarely villous (mostly proximally), also often sparsely glandular puberulent, especially distally.
Stems

erect, slender, often branched, 2–22 cm.

erect, slender, wiry, often branched, 2–15 cm.

Leaves

proximalmost usually clustered near base;

blade sometimes with purple splotches or dots, linear, 1–3 × 0.04–0.2 cm, base narrowly cuneate, margins serrulate, apex acuminate.

proximalmost not clustered near base;

blade linear or linear-filiform, 1–3 × 0.04–0.1 cm, base attenuate, margins subentire, apex acute.

Flowers

opening near sunrise;

floral tube 0.8–1.6 mm, glabrous inside;

sepals 1.2–2 mm, reflexed separately;

petals 1.8–3.1 mm, each with 2 red dots basally; episepalous filaments 0.8–2 mm, epipetalous filaments 0.4–0.9 mm, anthers 0.3–0.4 mm, pollen with less than 5% of grains 4- or 5-pored;

style 1.6–3.2 mm, stigma surrounded by anthers at anthesis.

opening near sunrise;

floral tube 1.3–2 mm, glabrate;

sepals 1.5–2.5 mm, reflexed separately;

petals 1.5–3.6 mm, without red dots at base;

filaments 0.5–1 mm, anthers 0.3–0.6 mm, pollen with less than 5% of grains 4- or 5-pored;

style 1.5–3 mm, stigma surrounded by anthers at anthesis.

Capsules

18–32 × 0.6–1 mm;

pedicel 0–2 mm.

15–28 × 0.6–1 mm;

pedicel 0–2 mm.

Seeds

0.7–0.8 × 0.4 mm.

0.7–0.8 × 0.4 mm.

2n

= 14.

= 28.

Camissonia pusilla

Camissonia parvula

Phenology Flowering Apr–Jun. Flowering Apr–Jun.
Habitat Sandy soils on open or brushy slopes, usually with sagebrush scrub. Sandy soils, usually with sagebrush scrub.
Elevation 100–3000 m. (300–9800 ft.) 100–2700 m. (300–8900 ft.)
Distribution
from FNA
CA; ID; NV; OR; UT; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY
[WildflowerSearch map]
[BONAP county map]
Discussion

P. H. Raven (1969) determined that Camissonia pusilla is a self-compatible diploid and autogamous; it is closely related to C. kernensis, C. parvula, and C. pubens.

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

P. H. Raven (1969) determined that Camissonia parvula is a self-compatible tetraploid and autogamous. The species is closely related to C. kernensis and C. pubens.

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

Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissonia Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissonia
Sibling taxa
C. benitensis, C. campestris, C. contorta, C. integrifolia, C. kernensis, C. lacustris, C. parvula, C. pubens, C. sierrae, C. strigulosa
C. benitensis, C. campestris, C. contorta, C. integrifolia, C. kernensis, C. lacustris, C. pubens, C. pusilla, C. sierrae, C. strigulosa
Synonyms Oenothera parvula, O. contorta var. flexuosa, Sphaerostigma contortum var. flexuosum, S. filiforme, S. flexuosum, S. parvulum
Name authority P. H. Raven: Contr. U.S. Natl. Herb. 37: 312; fig. 53. (1969) (Nuttall ex Torrey & A. Gray) P. H. Raven: Brittonia 16: 284. (1964)
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