Proc. Calif. Acad. Sci., ser. 3, 2: 119, plate 19, fig. 1. 1901.
Stems usually branching distal to base, 1–5 dm, slightly glaucous. Leaves: basal persistent, 20–50 cm; blade linear, flat, slightly glaucous. Inflorescences 2–many-flowered. Flowers nodding; perianth closed at apex, globular; sepals spreading, ovate to lanceolate, 1.5–2 cm; petals deep yellow, with brown abaxial blotch, widely lanceolate, 1.6–2 cm, densely ciliate throughout, adaxial surface glabrous or with a few hairs near gland; glands deeply depressed, bordered distally by band of hairs; filaments longer than anthers; anthers oblong, apex obtuse or acute. Capsules nodding, winged, oblong, 2–3 cm, apex obtuse or acute. Seeds dark brown, irregular. 2n = 20.
Phenology: Flowering mid spring–mid summer.
Habitat: Shaded places in open woods or brush
Elevation: 100–1000 m