Stem : plant creeping. Stems slender, ca. 2 mm thick, many nodes, branched.

Leaves : two rows of alternate, thick leathery leaves, often V-shaped fold, oval or lanceolate, about 0.5-1.1cm long, about 3-4mm wide, apex acuminate, with sheath wrapped.

Flowers : racemes, opposite to leaves, several inflorescences, with several flowers ; the stem is light green, about 5-8mm long, bracts membranous ; the sepals and petals in the flower are white, and the lateral sepals and lips are nearly purple ; middle sepals oval, ca. 2-2.5 mm long, ca. 2 mm wide, apex rounded ; petals ovate, ca. 2 mm long, ca. 1 mm wide, apex rounded ; the lateral sepals are nearly elliptic, with a white one near the petal side. The apex is dark purple-red, about 3 mm long, about 2 mm wide, and the apex is round. Lips trilobed, lobes subsemicircular on both sides, erect, labial disc with a purplish red corpus callosum ; the joint between the lip disc and the middle lobe is jointed. The middle lobe is nearly elliptical, the front is concave and thickened, and the apex is truncated. Rectangular cylinder transparent, curved, close to the pedicel together with the ovary, the apex depression was 2 cracks ; drug cap yellow. 

Flowering : June.

fruit: