Stem : epiphytic, stem cylindrical, base gradually thinning upward, with several sections, internode length of about 1-2.5 cm, white membranous leaf sheath and with several veins or persistent fibrous sheath.

Leaves : Leaves near the top or on the upper part of the stem, leathery, nearly long oval, 3-4, about 3.7-8.8 cm long, about 1.4-2.3 cm wide, apex near the convex tip, base with a joint and stem sheath.

Flowers : racemes terminal and erect, about 5.5-10cm long, with several flowers ; flowers light yellow green, developing ; the bracts are nearly lanceolate, about 4-5 mm long, apex acuminate or acute ; pedicels together with ovary ca. 1.6-2.1 cm ; middle sepals subswordlike, ca. 1.3 cm long, ca. 3 mm wide, apex acuminate ; the petals are nearly linear, about 1.4 cm long and 1 mm wide. The apex is arrow-shaped and acuminate. Lateral sepals nearly wide sickle-shaped, about1.2-1.3cm long, about4mm wide, apex convex tip ; lip valve sublong rhomboid, ca. 1.7-1.9 cm long, pale yellowish greenish, with 3 green ridges extending proximally from the base of the lip valve, flanked by brown stripes, splitting proximally into irregular lines ; the pistil column is nearly light grass green, about 4 mm in length ; stamens ca. 5-6 mm long, with light purple spots or not obvious, base green, on both sides of the edge with a purple stripe ; herb green, pollen yellow.Flowering August.