Eremothera nevadensis

(Kellogg) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 210. 2007.

Basionym: Oenothera nevadensis Kellogg Proc. Calif. Acad. Sci. 2: 224, fig. 70. 1863
Synonyms: Camissonia nevadensis (Kellogg) P. H. Raven O. gauriflora var. caput-medusae H. Léveillé O. gauriflora var. vermiculatam. E. Jones Sphaerostigma nevadense (Kellogg) A. Heller S. tortuosum A. Nelson
Treatment appears in FNA Volume 10.

Herbs glabrate to strigillose in distal and younger parts and capsules. Stems branched from base, primary stem short, lateral stems decumbent, usually with leaves mostly in a tuft toward apex, 1–5(–18) cm, flowering proximally and distally. Leaves mostly cauline, clustered toward ends of branches, 1–4.5 × 0.2–0.8 cm; petiole 1–3 cm; blade oblanceolate or narrowly oblanceolate, margins entire. Inflorescences erect. Flowers opening at sunset; floral tube 2.2–3.5 mm, glabrous inside; sepals 3.2–4 mm; petals white, fading pinkish, 3–5 mm; episepalous filaments 4.5–4.8 mm, epipetalous filaments 3–4 mm, anthers 0.4–1.5 mm; style 6–7 mm, glabrous, stigma 0.5–0.8 mm diam., exserted beyond anthers at anthesis. Capsules cylindrical and thickened proximally, spreading and highly contorted, 4-angled, 8–14 × 1–2 mm, regularly but tardily dehiscent. Seeds monomorphic, gray, 1.2–1.5 × 0.3–0.4 mm, finely reticulate. 2n = 14.


Phenology: Flowering Apr–May(–early Jun).
Habitat: Local and colonial on clay, sandy, or gravelly soils, often vernally wet sites, somewhat tolerant of alkali soils.
Elevation: 1200–1700 m.

Discussion

Eremothera nevadensis is known only from west-central Nevada in western Churchill, Douglas, northern Lyon, Ormsby, Pershing, Storey, and southern Washoe counties. P. H. Raven (1969) presumed Eremothera nevadensis to be self-compatible.

Selected References

None.

Lower Taxa

None.
... more about "Eremothera nevadensis"
Warren L. Wagner +
(Kellogg) W. L. Wagner & Hoch +
Oenothera nevadensis +
1200–1700 m. +
Local and colonial on clay, sandy, or gravelly soils, often vernally wet sites, somewhat tolerant of alkali soils. +
Flowering Apr–May(–early Jun). +
Syst. Bot. Monogr. +
Camissonia nevadensis +, O. gauriflora var. caput-medusae +, O. gauriflora var. vermiculatam. +, Sphaerostigma nevadense +  and S. tortuosum +
Eremothera nevadensis +
Eremothera +
species +