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

1. Parasenecio firmus (Komarov) Y. L. Chen, Fl. Reipubl. Popularis Sin. 77(1): 26. 1999.

大叶蟹甲草 da ye xie jia cao

Cacalia firma Komarov, Trudy Imp. S.-Peterburgsk. Bot. Sada 18: 420. 1901; Koyamacalia firma (Komarov) H. Robinson & Brettell; Miricacalia firma (Komarov) Nakai.

Stems erect, striate, to 2 m tall, robust, 1.5-2 cm in diam. at base, terete, glabrous. Radical leaves long petiolate, large; petiole 22-28 cm, stout, crisped-pubescent; blade abaxially pale green, adaxially green, orbicular or orbicular-cordate, ca. 30 × 35-100 cm, palmately medially cleft, base cordate, apex acute; lobes 11-15, triangular-ovate, adaxially glabrous, reticulate veined, abaxially puberulent on veins, margin irregularly mucronulate-serrate, apically acute. Stem leaves small; petiole short, 3-8 mm, stout; leaf blade ovate-triangular or ovate-oblong. Peduncles 10-12 × 2-3 mm, with linear bracteoles. Phyllaries 5, linear-lanceolate, 10-12 × 1.5-2 mm, sparsely puberulent or subglabrous, with membranous margins, apex obtuse or slightly acute. Florets 5-10; corolla yellow, 8-10 mm, tube slender, ca. 3.5 mm, limb narrowly tubular; lobes 5, linear-lanceolate, ca. 2 mm. Anthers basally caudate; style branches excurved, apex truncate, penicillate-papillose. Achenes yellow-brown, cylindric, 5-6 mm, glabrous, ribbed. Pappus white or sordid white, ca. 7 mm. Fl. Aug-Sep, fr. Oct.

Forest understories, forest margins, open spaces; 800-1100 m. Jilin [N Korea].


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