1. Bänziger H, Hansen B (1997) Unmasking the real identity of Sapria poilanei Gagnepain emend., and description of Sapria ram sp. n. (Rafflesiaceae). Nat Hist Bull Siam Soc 45:149–170
2. Bänziger H, Hansen B, Kreetiyutanont K (2000) A new form of the hermit’s spittoon, Sapria himalayana Griffith f. albovinosa Bänziger and Hansen f. nov. (Rafflesiaceae), with notes on its ecology. Nat Hist Bull Siam Soc 48:213–219
3. Barkman TJ, Klooster MR, Gaddis KD, Franzone B, Calhoun S, Manickam S, Vessabutr S, Sasirat S, Davis CC (2017) Reading between the vines: hosts as islands for extreme holoparasitic plants. Am J Bot 104:1382–1389.
https://doi.org/10.3732/ajb.1700117
4. Bendiksby M, Schumacher T, Gussarova G, Nais J, Mat-Salleh K, Sofiyanti N, Madulid D, Smith SA, Barkman T (2010) Elucidating the evolutionary history of the Southeast Asian, holoparasitic, giant-flowered Rafflesiaceae: pliocene vicariance, morphological convergence and character displacement. Mol Phylogenet Evol 57(2):620–633
5. Elliott S (1992) Status, ecology and conservation of Sapria himalayana Griff. (Rafflesiaceae) in Thailand. J Wildlife Thail 2(1):44–52