Senecio intermedius Hayata
Stems 80-160 cm tall, glabrous, corymbosely branched apically. Cauline leaves 2, subcoriaceous, lower leaves long petiolate, peltate, spherical, 35 cm across, palmatipartite, segments broad, 15-20 mm across, segments 5-9, bifid, small segments broad, 15-20 mm across, margins irregularly incised-serrate, apex acute; cauline leaves smaller and shorter-petiolate, with fewer segments; upper leaves bract-like, linear-lanceolate, acute, remote, gradually smaller. Heads doubly corymbose, 8-10 mm across; peduncle 5-16 mm long; bracts linear, 3-4 mm long. Involucre tubular, 9-10 mm long, subtended by 3 or 4 linear bractlets, bractlets 3-5 mm long; bracts in 1 series, 5 or 6, glabrous, oblong, obtuse. Florets 14-16; corolla white, 10-13 mm long, 5-lobed. Pappus red, 10 mm long, bristles nearly equal.
MIAOLI: Tonghsiao, Suzuki 20509, Sasaki s. n. 1910.
Endemic; local in Miaoli Hsien, grassy fields in open forests, 300-500 m, not collected for more than 70 years, possibly extinct.