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

7. Gynura formosana Kitamura, Acta Phytotax. Geobot. 2: 175. 1933.

白凤菜 bai feng cai

Gynura divaricata (Linnaeus) Candolle subsp. formosana (Kitamura) F. G. Davies.

Herbs, perennial, subscapigerous. Stems procumbent in lower part, erect above, striate when dry, 25-50 cm tall, terete, hispidulous, branched, branchlets 2 or 3, ascending. Basal leaves withered by anthesis, lower and median leaf petioles with 1 pair of auriculate pseudostipules at base, lower and median part often 1- or 2-denticulate; blade elliptic or spatulate, rarely lyrately pinnatifid, 4-6 × 2-4 cm, fleshy, both surfaces adpressed shortly hairy, lateral veins 6-8-paired, midvein and veinlets inconspicuous, base gradually attenuate into long petiole, margin repand-denticulate, apex obtuse. Upper leaves sessile, small, oblong, pinnatifid, or lanceolate, mucronulate, with pseudostipules at base. Uppermost leaves reduced, linear or linear-lanceolate, 5-20 mm. Capitula 2-5, usually 3 in terminal lax corymbs, 15-18 mm in diam.; peduncles 5-7 cm, slender, puberulent, 1-3-bracteate. Involucres tubular, ca. 11 × 12-15 mm; bracts of calyculus several, linear; phyllaries 12-14, lanceolate, 1-1.5 mm wide, sparsely puberulent, margin scarious, apically acute or acuminate. Florets exceeding involucres; corolla yellow, 14-15 mm, with slender, 10-11 mm tube and dilated limb; lobes ovate-lanceolate. Anthers obtuse at base. Style branches apically with lanceolate appendages, papillose. Achenes cylindric, 4-4.5 mm, puberulent, 10-ribbed. Pappus hairs numerous, white, silky, ca. 10 mm. Fl. and fr. May-Jul.

● Sandy shores; sea level to 500 m. Taiwan.


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