Oenothera campestris Greene subsp. parishii (Abrams) Munz; O. dentata Cavanilles var. johnstonii Munz; O. dentata var. parishii (Abrams) Munz; Sphaerostigma campestre (Greene) Small var. helianthemiflorum (H. Léveillé) A. Nelson; S. campestre var. parishii Abrams

Stems usually erect. Leaves: blade linear to narrowly elliptic or narrowly oblanceolate, margins sparsely serrulate. 2n = 14.

Flowering May–Jun. Open, sandy flats, desert scrub, non-coastal grasslands; 0–2000 m; Calif.

Subspecies campestris is known from central and southern California; it sometimes occurs sympatrically with the hexaploid Camissonia contorta, forming usually sterile hybrids.