Seriphidium thomsonianum (C.B.Clarke) Ling & Y.R.Ling

Subshrubs, 30-80 cm tall, gray arachnoid pubescent. Lower and middle stem leaves: petiole short; leaf blade ovate or broadly ovate, 2-3 × 2-3 cm, gray pubescent, 2-or 3-pinnatisect; segments 4(or 5) pairs; lobules linear, 0.5-1.5 mm. Upper leaves 1-or 2-pinnatisect; leaflike bracts 3-5-lobed. Synflorescence a broad, much-branched panicle. Involucre subglobose, 2.5-3 mm in diam.; phyllaries densely puberulent or ± glabrescent. Florets 6-10. Achenes oblong. Fl. and fr. Aug-Oct.