Compilation
Senecio perennans

Perennials, 7–15+ cm; ± rhizomatous (rhizomes branched, sometimes densely crowded). Stems 1 or 3–5, clustered (often scapiform), usually floccose, lanate-tomentose, or canescent, sometimes glabrate. Basal leaves (either of two forms): usually (1) sessile, sometimes petiolate; blades narrowly lanceolate to elliptic, 15–40+ × 5–25 mm, bases tapering, margins entire or dentate toward apices (often revolute), sometimes (2) petiolate; blades ovate to orbiculate, 10–20 × 5–15 mm, bases tapering to abruptly contracted, margins entire or wavy, sometimes dentate toward apices. Cauline leaves abruptly reduced (bractlike). Heads1–5(–8) in cymiform to subumbelliform arrays. Peduncles inconspicuously bracteate, glabrous or densely hairy. Calyculi conspicuous (bractlets often cyanic). Phyllaries 13 or 21, green (tips sometimes cyanic), 4–10 mm, glabrous or hairy. Ray florets 0, 8, or 13; corolla laminae 5–10 mm. Disc florets 30–50+; corolla tubes 2.5–3.5 mm, limbs 3–4 mm. Cypselae 1.5–2 mm, glabrous; pappi 5–6 mm. 2n = 44, 46.