Senecio actinella


Bull. Torrey Bot. Club 10: 87. 1883.

Synonyms: Senecio actinella var. mogollonicus (Greene) Greenman Senecio mogollonicus
Treatment appears in FNA Volume 20. Treatment on page 553. Mentioned on page 547.

Perennials, (7–)20–30(–40+) cm (rhizomes exfoliating). Herbage densely lanate-tomentose, glabrescent (especially on adaxial faces of leaves). Stems single. Leaves mostly basal; petiolate; blades narrowly obovate, (2–)3–7(–10) × 1–2(–3+) cm, bases tapered, margins subentire to denticulate (cauline leaves bractlike). Heads 1(–3). Calyculi of (1–)5–8+ linear to filiform bractlets (lengths 1/3–3/4 phyllaries). Phyllaries ± 21, 8–12 mm, tips greenish (with white bristles). Ray florets ± 13; corolla laminae usually 8–10 mm (sometimes tubular, unexpanded, heads then perhaps technically disciform). Cypselae hairy.

Phenology: Flowering summer.
Habitat: In duff, rocky woodlands, especially in pine-dominated areas
Elevation: 2000–3000 m



Ariz., N.Mex., Mexico (Chihuahua, Durango).


Plants of Senecio actinella with relatively small proximal leaves similar to basal leaves and adaxial leaf faces early glabrate have been recognized as var. mogollonicus; the distinction is difficult to maintain. Receptacles in Senecio actinella are sometimes insect-infested.

Selected References


Lower Taxa

... more about "Senecio actinella"
Theodore M. Barkley† +
Greene +
Ariz. +, N.Mex. +, Mexico (Chihuahua +  and Durango). +
2000–3000 m +
In duff, rocky woodlands, especially in pine-dominated areas +
Flowering summer. +
Bull. Torrey Bot. Club +
Senecio actinella var. mogollonicus +  and Senecio mogollonicus +
Senecio actinella +
species +