Plant: Annual 10-30 cm; stem branched throughout; branches generally ascending, strigose

Leaves: 0.3-3(5) cm, simple, entire, linear to oblong, ± appressed-bristly; some bristles on lower surface bulbous-based; basal whorled; cauline generally opposite below, alternate above

INFLORESCENCE: cymes, generally dense in fruit; lower flowers not touching

Flowers: sepals free, 2-2.5 mm, 2.5-3 mm and elliptic to ovate in fruit, densely strigose to rough-hairy near margin, hairs ascending; corolla scented, tube 2-2.5 mm, limb 2-4 mm wide, throat appendages generally bright yellow; anthers included; ovary generally 4-lobed

Fruit: Fruit: nutlets 1(2), ± 2 mm, lanceolate, ± 3-sided, margin sharp-angled to narrowly winged distally, back finely tubercled to white-granular, groove on inside surface flared open at base

Misc: Sandy to gravelly soils, creosote-bush scrub, pinyon/juniper woodland; < 2000 m.; Mar-May