Senecio douglasii de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 429. 1838; S. douglasii var. tularensis Munz

Herbage usually ± tomentose (usually with persistent, uneven grayish tomentum), sometimes unevenly glabrescent. Calyculi: bractlets well developed (lengths ¹ / 3 – ¹ / 2 phyllaries). Involucres usually campanulate. Phyllaries (± 13) ± 21, 7–10(–12) mm.

Flowering mostly summer–fall (year around in favorable sites). Dry, open, sandy or rocky sites, usually areas with continual mild disturbance; 100–1500 m; Calif.; Mexico (Baja California).