Stems : Stems 1-2 cm long, with flat, long, curved roots.

Leaves subbasal, oblong or obovate-lanceolate, 5.5-19 cm long, 1.5-3.4 cm wide, apex obtuse and unequally 2-lobed, base with joints and sheaths clasping stems, with most parallel veins, but only midvein distinct.

Racemes as long as 10 cm, sparse flowers ; bracts ovate, 6-9 mm long, apex slightly obtuse, pedicel and ovary ca. 2. 5 cm long ; flowers fragrant, slightly fleshy, spreading, yellowish green with light brown spots ; middle sepals suborbicular, 16-20 mm long, 7-9 mm wide, apex pointed and curved downward, 5-6 veins, ribbed winged at back ; the lateral sepals are similar to the middle sepals and narrower, with 5-6 veins, rib-winged on the back ; petals subelliptic, 15-18 mm long, ca. 6 mm wide, apex acute, 5-6 veins ; lip flap 3 - lobed, base and pistil foot end combined to form a joint ; lateral lobes erect, semicircular, edge slightly fine teeth ; middle lobe fleshy, narrowly oblong, 6 mm long, ca. 1.2 mm wide, beak-like projections proximal to apex on abaxial surface, base ( at spur ) with 1 conical callose compressed on both sides, upper with 1 longitudinal high folds from base to apex ; spur angular, ca. 1 cm long, curved forward, tapering toward ends ; stamens ca. 1 cm long, calyx legs almost invisible ; the column wing extends to the top of the column into a column tooth ; stamen beak elongates, bends down, 2-lobed ; lobes oblong, ca. 4 mm ; drug cap front narrowing ; the stick disc handle is flat linear, often folded, narrowing to the base, and the stick disc is nearly circular. 

Flowering : May.

fruit: