Philbrick’s desertdandelion

Stems (1–)3–5(–10), erect (when single) or decumbent to ascending, branched proximally and/or distally. Distal cauline leaves oblanceolate to lanceolate usually pinnately lobed (from bases to near apices). Calyculi of 5–12+, oblong to linear bractlets (sometimes ± intergrading with phyllaries). Involucres 6–9(–11) × 2.5–5(–7) mm. Phyllaries 12–21+ in 2–3 series. Corollas medium yellow, 8–16 mm; outer ligules exserted 4–8 mm. Cypselae ± prismatic (5-angled), 1.3–1.7 mm, 5 ribs more prominent than others. 2n = 14.

Flowering Mar–Jul. Open sandy areas, dunes, or between shrubs in island chaparral; of conservation concern; 0–100 m; Calif.

Subspecies philbrickii is known only from Santa Barbara Island.