刺蒴麻（学名：Triumfetta rhomboidea）为椴树科刺蒴麻属下的一个种。

Triumfetta rhomboidea, commonly known as diamond burbark or Chinese bur, is a shrub that is extensively naturalised in tropical regions.

Its bark--sometimes called burbark--makes a kind of Jute.

The taxon was first formally described in 1760 by botanist Nikolaus von Jacquin.