Senecio actinella |
|
---|---|
Flagstaff ragwort |
|
Habit | 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). |
Ray florets | ± 13; corolla laminae usually 8–10 mm (sometimes tubular, unexpanded, heads then perhaps technically disciform). |
Phyllaries | ± 21, 8–12 mm, tips greenish (with white bristles). |
Calyculi | of (1–)5–8+ linear to filiform bractlets (lengths 1/3–3/4 phyllaries). |
Heads | 1(–3). |
Cypselae | hairy. |
Senecio actinella |
|
Phenology | Flowering summer. |
Habitat | In duff, rocky woodlands, especially in pine-dominated areas |
Elevation | 2000–3000 m (6600–9800 ft) |
Distribution |
AZ; NM; 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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 553. |
Parent taxa | |
Sibling taxa | |
Synonyms | S. actinella var. mogollonicus, S. mogollonicus |
Name authority | Greene: Bull. Torrey Bot. Club 10: 87. (1883) |
Web links |