(1)
Nopporncharoenkul, N.; Eakjamnong, W.; Somnoo, T.; Punchay, K. Taxonomic treatment of nyctanthous species of Kaempferia subgen. Protanthium (Zingiberaceae), with two new infraspecific taxa endemic to Thailand. Thai. Nat. Hist. Mus. J. 2026, 20, 137-171.