A new species, Piper chiangdaoense from Doi Chiangdao Wildlife Sanctuary, Chiang Mai province, Thailand, is described and illustrated. Piper trichostigma is raised to specific status and an epitype is selected. Piper maculaphyllum and P. rubroglandulosum are reduced to the synonymy of P. argyrites and P. betle, respectively. A lectotype for P. argyrites is selected.

Additional Metadata
Keywords Piper, Piper chiangdaoense, Piper trichostigma, synonym, Thailand
Journal Blumea: Biodiversity, Evolution and Biogeography of Plants

Released under the CC-BY 4.0 ("Attribution") License

Suwanphakdee, C, & Chantaranothai, P. (2011). A new species and three taxonomic changes in Piper (Piperaceae) from Thailand. Blumea: Biodiversity, Evolution and Biogeography of Plants, 56(3), 235–239.