× Holcosia taiwaniana is a natural hybrid of the orchid species Holcoglossum quasipinifolium and Luisia teres.

[1] The occasionally branched, pendulous, terete stems are 30 to 60 cm in length and 4 to 4.5 mm wide.

The terete, 14 to 21 cm long and 2 to 3.5 mm wide leaves are not strictly distichously arranged, but rather laxly alternate.

Two 4–5 cm wide, yellowish flowers are produced on 2 to 3 cm long inflorescences.

The labellum bears brown-red longitudinal stripes.