Plant: perennial herb; stems to 60 cm tall, producing branches along their entire length

Leaves: to 10 cm long, to 2 cm wide, sessile, oblanceolate to narrowly elliptic or lanceolate; margins toothed to lobed; upper leaves with slightly clasping bases or basal lobes

INFLORESCENCE: cymose

Flowers: pedicellate, subtended by 0-2 linear-lanceolate entire bracts; petals yellow, 5-10(-15) mm long, 1.5-5 mm wide, with trichomes covering the outer surface; staminodia 3-5, slightly shorter and narrower than petals; outer 1-2 whorls of stamens with broadened filaments; style 4-8 mm long; stigmatic papillae forming a slight tuft

Fruit: capsules cylindric, subglobose when short, 4-10(-15) mm long. SEEDS horizontal, winged, oval to obovate, flattened; testa cells with curved to wavy adjoining walls, the surface walls with 15-20 small bumps

Misc: Commonly on sand; 650-1900 m (2200-6200 ft); Apr-Nov

REFERENCES: Christy, Charlotte M. 1998. Loasaceae. J. Ariz. - Nev. Acad. Sci. 30(2): 96.