Flora of North America species comparison

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Camissoniopsis guadalupensis

Camissoniopsis intermedia

San Clemente Island evening-primrose

intermediate sun cups, intermediate suncup
Habit Herbs annual, appearing greenish, moderately villous, often also glandular puberulent on stems distally and on inflorescences.
Stems

erect, usually with 1+ ascending branches from basal rosette, 30–60 cm.
Leaves

1–12 × 0.2–1.7 cm;

petiole 0–1 cm, distal ones sessile;

blade lanceolate to narrowly ovate, base cuneate to truncate, basal and proximal cauline often attenuate, margins denticulate, apex acute.
Flowers

opening near sunrise;

floral tube 1.2–2 mm;

sepals 1–2.5 mm;

petals yellow, with 1 or 2 red dots basally, 1.5–3.5(–4.5) mm; episepalous filaments 0.8–1.5 mm, epipetalous filaments 0.5–0.9 mm, anthers 0.4–0.5 mm, less than 5% of pollen grains 4- or 5-pored;

style 2–3.5 mm, stigma surrounded by anthers at anthesis.
Capsules

straight or 1-coiled spiral, subterete in living material, 4-angled when dry, 13–25 × 1.1–1.2 mm.
Seeds

0.7–1.1 mm.
2n

= 28.

Camissoniopsis guadalupensis

Camissoniopsis intermedia
Phenology Flowering Mar–Jun(–Sep).
Habitat Disturbed brushy slopes, on burns.
Elevation (150–)300–800 m. ((500–)1000–2600 ft.)
Distribution
nw Mexico; California
[BONAP county map]
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
Discussion

Subspecies 2 (1 in the flora).

Camissoniopsis guadalupensis is known from San Clemente Island, Los Angeles County, California (subsp. clementiana), and Isla Guadalupe, Baja California (subsp. guadalupensis). P. H. Raven (1969) determined C. guadalupensis to be self-compatible and primarily autogamous.

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

Camissoniopsis intermedia occurs from Lake and Yolo counties (where rare) south in the Coast Ranges of California to the western San Gabriel Mountains, western Riverside and San Diego counties, and south in Baja California to the south end of the Sierra San Miguel; also on Santa Catalina and Santa Cruz islands. P. H. Raven (1969) determined C. intermedia to be self-compatible and primarily autogamous. The species is apparently a tetraploid derived via hybridization between two diploid (2n = 14) species, C. hirtella and C. micrantha.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
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. hardhamiae, C. hirtella, C. ignota, C. intermedia, C. lewisii, C. luciae, C. micrantha, C. pallida, C. robusta
C. bistorta, C. cheiranthifolia, C. confusa, C. guadalupensis, C. hardhamiae, C. hirtella, C. ignota, C. lewisii, C. luciae, C. micrantha, C. pallida, C. robusta
Subordinate taxa
C. guadalupensis subsp. clementiana
Synonyms Oenothera guadalupensis, Camissonia guadalupensis Camissonia intermedia
Name authority (S. Watson) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 204. (2007) (P. H. Raven) 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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