Senecio actinella

Greene

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

Distribution

V20-1219-distribution-map.gif

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

Discussion

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

None.

Lower Taxa

None.
... 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 +