Rhizome terete, to 7 cm. ca. 1 cm in diam. Stem 48--70 (--110) cm tall, 1-branched below inflorescence, basally sparsely retrorse yellowish scabrous pubescent. Basal leaves 2 or 3, long petiolate; petiole 15--30 cm; leaf blade orbicular-reniform or reniform, 3.6--7 × 7.6--12 cm, both surfaces sparsely shortly strigose, 3-parted beyond middle; central lobe cuneate-obtrapezoid, 2-fid; lateral lobes obliquely flabellate, unequally 2-or 3-fid. Cauline leaves 2 or 3(--5), similar to basal ones. Inflorescence 14--20(--36) cm, ca. 10-flowered; rachis and pedicels densely spreading pubescent; basal bracts 3-fid, others linear, smaller, 3.5--5 mm, unlobed. Proximal pedicels 1.2--3.5(--5.5) cm, others 5--12 mm, with 2 bracteoles at base of pedicels, rarely at middle, bracteoles linear, 2.5--3.5 mm. Sepals blue-purple, sparsely pubescent; lower sepals 0.8--1.1 cm; lateral sepals 9--1.2 cm; upper sepal cylindric, 1.6--2(--2.3) cm high, middle 4--7 mm in diam., apex rounded, with a beak, lower margin 0.9--1.2 cm. Petals glabrous; lip linear, conspicuous; spur slightly circinate, usually slightly longer than lip. Stamens glabrous; filaments entire. Carpels 3; ovary sparsely pubescent. Fl. Jul--Aug. 2n = 32*.
Home