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

13. Parasenecio otopteryx (Handel-Mazzetti) Y. L. Chen, Fl. Reipubl. Popularis Sin. 77(1): 40. 1999.

耳翼蟹甲草 er yi xie jia cao

Cacalia otopteryx Handel-Mazzetti, Symb. Sin. 7: 1132. 1936; Koyamacalia otopteryx (Handel-Mazzetti) H. Robinson & Brettell.

Rhizomes not dilated, with numerous fibrous roots. Stem solitary, erect, striate, often purple in lower part, 70-100 cm tall, glabrous. Lower leaves withered by anthesis; stem leaves 4-6, long petiolate; petiole with 5-10 mm wide wings, expanded into an amplexicaul large auricle; blade abaxially gray-green, adaxially green, broadly ovate-cordate or broadly cordate, 10-16 × 11-19 cm, papery, abaxially sparsely arachnoid or subglabrous, adaxially sparsely brown glandular, basally 3-veined, lateral veins 3 or 4 pairs, upward divaricate, base cordate, margin irregularly undulate-serrate, teeth mucronulate, apex acute or shortly acute. Capitula numerous, terminal, compound racemose; rachis and peduncles glandular puberulent, with 1 or 2 lanceolate-subulate bractlets at base of peduncles; bractlets 1-8 mm, spreading or pendulous. Involucres cylindric or narrowly campanulate, 5-7 × 2-2.5 mm; phyllaries (3-)5, oblong-lanceolate, 6-7 × 1-1.5 mm, outside with paleaceous short hairs, margin scabrous, apically obtuse. Florets 3(-5); corolla yellow-white, 7-8 mm, with ca. 3 mm tube and narrowly campanulate limb; lobes lanceolate, ca. 1.5 mm. Anthers exserted from corolla, basally long caudate. Style branches excurved, truncate, papillose. Achenes brown, cylindric, 4-5 mm, glabrous, ribbed. Pappus white, 6-7 mm. Fl. and fr. Jul-Sep.

● Forest understories on slopes, forest margins, shaded places in thickets; 1400-2800 m. Henan, Hubei, Shaanxi, Sichuan.

Parasenecio otopteryx is similar to P. profundorum but differs by the shape of leaves and in having petioles broadly winged and expanded at the base into an amplexicaul auricle.


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