Senecio pterophorus

Erect perennial to c. 1.5 m high; young stems usually white-cobwebbed, finally glabrous. Leaves sessile or pseudopetiolate, lanceolate to oblanceolate, 5–12 cm long, 3–20 mm wide, at least the lower ones usually with 2–8 forward-directed teeth, the upper ones (rarely all) entire; margins often recurved; hardly auriculate but usually shortly winged at base; upper surface scabrous, finally glabrous and often shining; lower surface densely white- or grey-cobwebbed. Inflorescence corymbose, (5–)10–20(–30) cm across; capitula 40–200 or more, radiate; involucre broadly campanulate, 4.5–6 mm long, sparsely cobwebbed at base; bracts 18–22; bracteoles to c. 20. Ray florets 8–13, yellow, ligules 4–7 mm long; disc florets c. 40–90, yellow. Cypselas obloid, 1.5–1.8 mm long, brown or reddish-brown, minutely appressed-papillose in rows; pappus of slender white hairs c. 5 mm long, deciduous. Flowers Dec.–Mar.