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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Ligularia

72. Ligularia jamesii (Hemsley) Komarov, Trudy Imp. S.-Peterburgsk. Bot. Sada. 25: 697. 1907.

长白山橐吾 chang bai shan tuo wu

Senecio jamesii Hemsley in Forbes & Hemsley, J. Linn. Soc., Bot. 23: 453. 1888; Senecillis jamesii (Hemsley) Kitamura.

Stem erect, 30-60 cm tall, 4-5 mm in diam. at base, proximally glabrous, distally white arachnoid-puberulent. Basal leaves petiolate; petiole to 29 cm, slender, glabrous, base narrowly sheathed; leaf blade triangular-hastate, 3.5-9 cm, base 7-10 cm wide, abaxially glabrous, adaxially shortly yellow pilose, palmate-pinnately veined, margin sharply dentate, apex acute or acuminate; sinus ca. 1/2 as long as leaf blade, broad, basal lobes lanceolate, to 6 cm, segments to 2.5 cm, divergent, margin entire or 2- or 3-divided. Middle stem leaves shortly petiolate; sheath enlarged, to 4 cm, amplexicaul; leaf blade smaller, ovate-sagittate. Distal stem leaves numerous, sessile, bracteal, lanceolate, to 3 cm, margin subentire. Capitulum solitary, 5-7 cm in diam.; supplementary bracts linear-lanceolate. Involucre broadly campanulate, 15-17 × to 1.5 cm, outside white arachnoid-puberulent; phyllaries ca. 13, in 2 rows, lanceolate, ca. 3 mm wide, margin brown membranous, apex acuminate. Ray florets 13-16, yellow; lamina linear-lanceolate, to 4 cm × 3-4 mm, apex acuminate, 2- or 3-lobed; tube 5-6 mm. Tubular florets numerous, 1-1.1 cm; tube ca. 5 mm. Achenes dark brown, cylindric, 5-7 mm. Pappus pale yellow, as long as tubular corolla. Fl. and fr. Jul-Aug.

Forest understories, scrub, alpine meadows; 300-2500 m. Jilin, Liaoning, Nei Mongol [Korea].


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