Flora of North America species comparison

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Camissoniopsis lewisii

Camissoniopsis guadalupensis

Lewis' evening-primrose

San Clemente Island evening-primrose
Habit Herbs annual, villous, also glandular puberulent distally.
Stems

usually several, decumbent, rarely 1 erect stem, 30–60 cm.

Leaves

1–8 × 0.2–1.1 cm;

petiole 0–3 cm;

blade narrowly lanceolate-elliptic, base cuneate or subcordate, margins denticulate, apex acute.

Flowers

opening near sunrise;

floral tube 1.5–4 m;

sepals 1.7–3.4 mm;

petals yellow, with 1 or 2 red dots basally, 2.5–5.5 mm; episepalous filaments 2–2.8 mm, epipetalous filaments 1–1.7 mm, anthers 0.7–1.2 mm, less than 5% of pollen grains 4- or 5-pored;

style 2.8–4.5 mm, stigma surrounded by anthers at anthesis.

Capsules

usually loosely 1-coiled, conspicuously 4-angled in living material, 13–20 × 1.8–2.2 mm.

Seeds

0.7–0.8 mm.

2n

= 14.

Camissoniopsis lewisii

Camissoniopsis guadalupensis
Phenology Flowering Mar–May(–Sep).
Habitat Open sandy and clayey grasslands, coastal dunes and beaches.
Elevation 0–300 m. [0–1000 ft.]
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
nw Mexico; California
[BONAP county map]
Discussion

Camissoniopsis lewisii occurs from Point Dume and the Los Angeles Basin, Los Angeles County, south to Cardon Grande at the northern edge of Baja California Sur. P. H. Raven (1969) determined C. lewisii to be self-compatible and primarily autogamous, and suggested that this coastal Camissoniopsis may have been derived more or less directly from coastal populations of C. bistorta.

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

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.)
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. luciae, C. micrantha, C. pallida, C. robusta
C. bistorta, C. cheiranthifolia, C. confusa, C. hardhamiae, C. hirtella, C. ignota, C. intermedia, C. lewisii, C. luciae, C. micrantha, C. pallida, C. robusta
Subordinate taxa
C. guadalupensis subsp. clementiana
Synonyms Camissonia lewisii Oenothera guadalupensis, Camissonia guadalupensis
Name authority (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007) (S. Watson) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 204. (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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