 The sepals are free from each other but the lateral sepals and labellum are fused to the base of the column.The genus "Appendicula" was first formally described in 1825 by Carl Ludwig Blume who published the description in "Bijdragen tot de flora van Nederlandsch Indië".The name "Appendicula" is the diminutive form of the Latin word "appendix" meaning "appendage" or "addition", hence "little appendage", referring to the "inward-facing appendages on the labellum".