Tan, J., Fathmath, S. & Tam, S. (2020)

Begonia sibthorpioides subsp. machinchangensis (Begoniaceae): a new subspecies from Gunung Machinchang, Langkawi Island, Malaysia

. Phytotaxa 459 (2): 168–180. https://doi.org/10.11646/phytotaxa.459.2.7