Oenothera munzii P. H. Raven, Univ. Calif. Publ. Bot. 34: 91. 1962; Camissonia munzii (P. H. Raven) P. H. Raven

Herbs annual, strigillose, often densely so. Stems several, 8–50 cm. Leaves primarily in basal rosette and also cauline, 1.5–20 × 0.5–3 cm; petiole 0.5–5 cm; blade pinnately lobed, terminal lobe ovate to narrowly ovate, 1.3–6 × 0.6–3 cm, margins denticulate, brownish oil cells lining veins abaxially. Racemes nodding, not congested, elongating in mature bud. Flowers opening at sunrise; buds with or without subapical free tips; floral tube orange-brown inside, 2–3 mm, villous inside; sepals 4–7 mm; petals bright yellow, with red dots near base, fading pale yellow or yellowish orange, 3–10 mm; stamens subequal, filaments 4–8 mm, anthers 3–6 mm, ciliate; style 8–18 mm, stigma exserted beyond anthers at anthesis. Capsules widely spreading, becoming sharply reflexed, clavate, 8–24 mm; pedicel 8–28 mm. Seeds 0.8–1.6 mm. 2n = 14.

Flowering Mar–Jun. Mesic slopes, washes; 600–1600 m; Calif., Nev.

Chylismia munzii is known from middle elevations in the mountains at the north end, eastward from, and south of Death Valley, from Saline Valley and the Grapevine Mountains, Inyo County, California, and Yucca Flat, Nye County, Nevada, southward to the Kingston Range, San Bernardino County, California. P. H. Raven (1962, 1969) determined this species to be self-incompatible. It sometimes hybridizes with C. brevipes subsp. brevipes and C. claviformis subsp. aurantiaca.