Tube obconical, 1--1.4 cm, 4--6 mm in diam. Stem 25--50(--70) cm tall, basally becoming glabrous, apically sparsely retrorse pubescent, or intermixed with few spreading hairs. Basal leaf 1, with proximal cauline leaves withered at anthesis, middle ones slightly long petiolate; petiole 5--15 cm; leaf blade pentagonal or pentagonal-reniform, 2.4--5 × 4.5--7 cm, abaxially sparsely pubescent or becoming glabrous, adaxially appressed pubescent, 3-parted; central lobe broadly rhombic or obtrapezoid-rhombic; lateral lobes obliquely flabellate, unequally 2-or 3-fid. Inflorescence terminal, 3--5 cm, 3--5-flowered; rachis and pedicels densely spreading yellowish pubescent or intermixed with retrorse hairs; lowermost bracts leaflike, others linear. Pedicels suberect upward, 5--10 mm, proximally with 2 bracteoles; bracteoles narrowly linear, 2.5--5 mm. Sepals yellow, abaxially yellowish pubescent; lower sepals ca. 0.9 cm; lateral sepals ca. 1.2 cm; upper sepal galeate or navicular-galeate, shortly beaked, 1.6--1.9 cm from base to beak, ca. 7 mm wide. Petaline claw ± densely pubescent; lip ca. 5 mm, sparsely pubescent; spur incurved, globose, ca. 1 mm, glabrous. Stamens glabrous or sparsely pubescent; filaments entire. Carpels 5, densely brown-yellow villous. Fl. Aug.
Home