Thamnocalamus tessellatus is a species of bamboo belonging to the family Poaceae, and native to the high mountains of South Africa, Lesotho and Swaziland, lying along the south-eastern part of South Africa. It is found in the Amatola Mountains, the Bamboesberg, which is named after it, and the Drakensberg. Its generic name means "bushy reed", while the specific name means "tiled", an allusion to the rectangular pattern of veins on the leaves. Its common names include Mountain Bamboo, and Bergbamboes and Wildebamboes in Afrikaans.