Isocoma decumbens Greene, Leafl. Bot. Observ. Crit. 1: 172. 1906; Haplopappus venetus (Kunth) S. F. Blake subsp. furfuraceus (Greene) H. M. Hall; Isocoma veneta (Kunth) Greene var. furfuracea (Greene) R. M. Beauchamp

Stems prostrate to decumbent or ± erect; herbage finely and closely grayish-arachnoid-tomentose or glabrous, minutely stipitate-glandular. Leaf blades narrowly oblanceolate, 5–22 × 2–4 mm, not thick-fleshy, margins entire or with 1–2 pairs of teeth distally. Heads in corymbiform to loose, paniculiform arrays. Corollas 5–6.5 mm. Cypselae 2.3–3.6 mm. 2n = 24.

Flowering Jul–Nov. Sandy flats or slopes, commonly in disturbed sites; of conservation concern; 10–50(–200) m; Calif.; Mexico (Baja California).

Variety decumbens grows in San Diego County and southward.