Perennial, herbaceous shrublet. Stems erect, up to ± 1 m high, straight, ribbed, cobwebby at first, densely leafy. Leaves rigid, sessile, ± clasping, ovate-oblong to ovate-lanceolate, up to 40 mm long, margins reflexed, ± entire to sharply and distantly toothed, glabrous and glossy green above, white-woolly below. Inflorescence terminal, solitary or 2-5 in a corymb. Capitula radiate, disc and rays (12-15) yellow; involucre broad, flat-bottomed; bracts 25-30, 7-8 mm long; calyculus bracts many. Flowering time Aug.-Dec., mostly Sept. Cypselae cylindrical, 2 mm long, ribbed, ± hairy.
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Like S. ilicifolius in leaf but teeth often revolute. Flower heads few and larger with involucre ± 8 mm long.