Hitcheniopsis alismatifolia (Gagnep.) Loes. in H.G.A.Engler
A field of wild Siam Tulips in Pa Hin Ngam National Park, Thailand
White Siam Tulip in Pa Hin Ngam National Park
Curcuma alismatifolia, Siam tulip or summer tulip (Thai: ปทุมา, pathuma, or ดอกกระเจียว, dok krajiao) is a tropical plant native to Laos, northern Thailand and Cambodia. Despite its name, it is not related to the tulip, but to the various ginger species such as turmeric. It can grow as an indoor plant, and is also sold as cut flowers.
^Sirirugsa, P., Larsen, K. & Maknoi, C. (2007). The genus Curcuma L. (Zingiberaceae): distribution and classification with reference to species diversity in Thailand. Gardens' Bulletin Singapore 59: 203-220.
^Nakayama, M; Roh, MS; Uchida, K; Yamaguchi, Y; Takano, K; Koshioka, M (2000). "Malvidin 3-rutinoside as the pigment responsible for bract color in Curcuma alismatifolia". Bioscience, biotechnology, and biochemistry64 (5): 1093–5. doi:10.1271/bbb.64.1093. PMID10879491.