猫儿菊 mao er ju

Arnica ciliata Thunberg in Murray, Syst. Veg., ed. 14, 768. 1784; Achyrophorus aurantiacus Candolle; A. ciliatus (Thunberg) Schultz Bipontinus; A. grandiflorus (Ledebour) Ledebour; Hypochaeris grandiflora Ledebour; Trommsdorffia ciliata (Thunberg) Soják.

Herbs 20-60 cm tall, perennial, with a taproot. Stem erect, simple, glabrous or entirely or only basal half covered with rigid bristles, leafy, base with dark brown residue of old leaf bases. Basal leaves rosulate, elliptic, narrowly elliptic, or oblanceolate, 9-20 × 2-2.5 cm, scabrid, attenuate into winged petiole-like basal portion of 2-5 cm, margin ± sharply dentate, apex acute to rounded. Lower stem leaves similar to basal leaves; middle and upper stem leaves sessile, elliptic to ovate, smaller, ± sparsely arachnoid hairy, basally ± truncate and ± auriculately clasping, margin finely dentate, otherwise similar to lower leaves. Capitulum solitary, terminal on stem, with many florets. Involucre broadly campanulate to hemispheric, 1.5-2.5 × 1.5-2.5 cm. Phyllaries with ciliate margin and sparsely arachnoid hairy; outer phyllaries ovate to broadly lanceolate, conspicuously imbricate; inner phyllaries lanceolate. Florets golden yellow. Achene pale brown, cylindric, ca. 8 mm, with 15 ribs, apex slightly attenuate and truncate. Pappus ca. 1.5 cm, all bristles plumose. Fl. and fr. Jun-Sep. 2n = 10.

Grasslands on mountain slopes, forest margins, trailsides, thickets; 800-1200 m. Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Shanxi [Korea, Mongolia, E Russia].