Betula alnoides (Chinese: 西桦; pinyin: xi hua; Thai: กำลังเสือโคร่ง, RTGS: kamlang suea khrong, literally: "tiger power") is a species of birch that can be found in natural condition of such countries as Bangladesh, Bhutan, Cambodia, China, India, Laos, Myanmar, Nepal, Thailand and Vietnam at an elevation of 300–2,100 metres (980–6,890 ft) and higher in some cases (up to 2,700 metres (8,900 ft)). The southernmost of all known birch species, whose natural range reaches approximately 12° N in Cardamom Mountains, Cambodia.