Vanda helvola Blume, Rumphia 4 (1849) 49
Type: Blume 2213 (Java) (holo L; iso L)
Stem erect, elongated, usually unbranched, stout, densely leafy. Leaves c. 16 by 3.5 cm, strap-shaped, apex praemorse, erose, appearing 3-lobulate, with the lateral lobules subfalcate, pointed, the median lobule tooth-like, subacute to almost subulate. Inflorescences from the leaf axils, shorter than the leaves, laxly 5- to 6-flowered. Pedicel and ovary long and slender. Flowers widely opening, about 4 cm wide. Sepals 1.8 by 1.2 cm, shortly clawed, broadly ovate, undulate, apex broadly rounded. Petals similar to the sepals, 1.6 by 1.2 cm. Lip 1.8 by 1.6 cm, 3-lobed, spurred; lateral lobes 0.8 cm long, obliquely oblong-ligulate, obliquely pointing backwards, apex broadly rounded; mid-lobe orbicular-obovate, 0.8 by 0.84 cm, apex broadly rounded; between the lateral lobes with 3 closely parallel rounded ribs decurrent on the base of the mid-lobe; spur cylindrical, obtuse, hairy inside, with two parallel calli on back wall near the mouth. Column relatively short and very broad, 0.75 cm long, at the base 1.27 cm wide, with semicircular sides.