棒花羊蹄甲 bang hua yang ti jia

Phanera nervosa Wallich ex Bentham in Miquel, Pl. Jungh. 262. 1852; Bauhinia claviflora L. Chen.

Climbers, robust, with tendrils. Branches brownish pubes­cent, later subglabrous. Stipules ovate-auriculate; petiole 1.5-3 cm; leaf blade suborbicular, 6-8 × 7-9 cm, subleathery, abaxi­ally thinly pubescent, adaxially glabrous, veins 11-13, base shallowly cordate, apex bifid to ca. 1/3, lobes rounded at apex. Inflorescence racemose-corymbose, rusty pubescent; bracts lan­ceolate, cucullate, 1.3-1.8 cm; bracteoles similar to bracts but smaller, inserted at middle of pedicel. Pedicel 4-5 cm. Flower buds to 4.5 cm. Receptacle tubular, ca. 2 cm; calyx lobes re­flexed, swollen, linear-lanceolate, 2.5-3 × ca. 0.4 cm, outside pubescent, apex acute. Petals white and reddish at base, sub­leathery, broadly obovate, ca. 3 × 2.2 cm, veins convex, apex emarginate, claw to 2 cm. Fertile stamens 3; filaments strong, ca. 3.5 cm, glabrous; anthers oblong, loosely hairy. Staminodes 2; filaments ca. 1.5 cm, slender. Ovary stalked, pubescent; style stout; stigma broadly disciform. Legume unknown. Fl. Sep.

Open forests; 1500-1600 m. Yunnan [India, Myanmar, Thailand].