| Pseudobulb |
Long cylindrical, slightly quadrangular, sometimes twisted, 2.5–4.0 cm high, 0.9–1.1 cm diameter, surface ridged |
Ovate or ovate-conical, 1–2 cm tall, 0.5–1.0 cm diameter, surface smooth |
| Leaf |
Elongate-elliptic, 9.0–12.0 × 1.5–2.0 mm |
Narrowly oblong, 7.0–15.0 × 0.7–1.7 cm |
| Flowers |
13–15 |
5–8 |
| Lateral Sepals |
With 1 small, raised sac, obliquely lanceolate, slightly curved |
Obliquely lanceolate |
| Petals |
Yellowish green without stripe, with a purple-brown round spot at the apex |
Dark red or purple with brown stripe (sometimes stripes missing but never with a brown apical spot) |
| Labellum |
2.9–3.1 mm long, broader towards frontal half |
3.3–4.9 mm long, width same throughout the length |
| Column |
Stelidia ciliate, foot 7.0–9.0 mm long |
Stelidia falcate, foot 11.0–13.0 mm long |