Oenothera avita subsp. californica

(S. Watson) W. L. Wagner & Gandhi

Harvard Pap. Bot. 27: 185. 2022.

Basionym: Oenothera albicaulis var. californica S. Watson Proc. Amer. Acad. Arts 8: 582. 1872
Synonyms: Anogra californica (S. Watson) Small Oenothera albicaulis var. melanosperma H. Léveillé O. californica var. glabrata Munz O. pallida var. californica (S. Watson) Jepson
Treatment appears in FNA Volume 10.

Herbs perennial, densely strig­illose and villous, sometimes glabrous; from a taproot, lateral roots producing adventitious shoots. Stems ascending to decumbent, unbranched or branched, new rosettes not forming at branch apex, 10–40 cm. Leaves: blade oblong to oblanceolate to spatulate, margins usually entire or weakly dentate, sometimes more conspicuously dentate to pinnatifid. Flowers: floral tube 20–40 mm; sepals 15–25 mm; petals 15–30 mm. Capsules 30–55 mm. 2n = 28.


Phenology: Flowering Apr–Jul(–Sep).
Habitat: Sandy or gravelly areas, open, coastal-sage scrub, chaparral, oak woodlands.
Elevation: 90–2000 m.

Distribution

Calif., Mexico (Baja California).

Discussion

Subspecies californica occurs in southwestern California from San Luis Obispo County south and into the Little San Bernardino Mountains to northern Baja California (Sierra de San Pedro Mártir).

Selected References

None.

Lower Taxa

None.
Warren L. Wagner +
(W. M. Klein) W. M. Klein +
Oenothera albicaulis var. californica +
Calif. +  and Mexico (Baja California). +
90–2000 m. +
Sandy or gravelly areas, open, coastal-sage scrub, chaparral, oak woodlands. +
Flowering Apr–Jul(–Sep). +
N. Amer. Fl., ser. 2 +
Anogra californica +, Oenothera albicaulis var. melanosperma +, O. californica var. glabrata +  and O. pallida var. californica +
Oenothera avita subsp. californica +
Oenothera avita +
subspecies +