Annuals, 5-15(-25+) cm. Leaf blades simple or pinnately lobed, terminal lobes filiform, 0.5-1+ mm wide. Peduncles 5-15(-20+) cm. Calyculi of (3-)5 linear bractlets 3-5(-12) mm, not ciliolate near bases. Phyllaries (5-)8, ovate, 5-7+ mm. Ray florets (5-)8(-9+); laminae 5-12(-16+) mm. Disc florets 8-60(-100+); corollas 2.8-3.5 mm. Cypselae ± oblanceolate, 3.5-4+ mm, not marked adaxially with red dots or dashes, wings usually thin, sometimes corky-thickened, faces usually smooth, rarely tuberculate, not hirtellous. 2n = 24. Flowering Mar-May. Shale and serpentine slopes, sandy flats; (150-)300-1000 m; Calif.

Plant: Annual generally 5-25 cm, glabrous, glaucous; stems 1-few, erect Leaves: basal and alternate on lower stem, 2-8 cm, 1 mm wide, linear, entire (or lobes 1-2, short, linear), ± fleshy, grooved above INFLORESCENCE: primary inflorescence a head, each resembling a flower, heads radiate, solitary, ± scapose; involucre widely cylindric, base rounded; outer phyllaries 2-7, 4-7 mm, narrowly lanceolate; inner phyllaries 5-8, 6-10 mm, obovate, acute; chaff scales 4-5 mm, linear, free from disk achenes Flowers: Ray flowers 5-8, fertile; ligules 5-8 mm, ovate, yellow, showy; Disk flowers 10-30; corollas 4-4.5 mm, yellow, 4-5-lobed; style tips truncate to long-tapered Fruit: Fruits ray and disk achenes alike, 2.5-5 mm, obovate, dark brown, shiny, glabrous; wing ± yellow; pappus 0 Misc: Dry, rocky slopes; 150-600 m.