| Triumfetta rhomboidea | |
|---|---|
| Flowering plant in Kerala, Indi | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malvales |
| Family: | Malvaceae |
| Genus: | Triumfetta |
| Species: | T. rhomboidea |
| Binomial name | |
| Triumfetta rhomboidea | |
Triumfetta rhomboidea, commonly known as diamond burbark, Chinese bur, or kulutkulutan in Tagalog, is a shrub that is extensively naturalised in tropical regions. It is thought that to have come to Australia from China. Its bark—sometimes called burbark—makes a kind of jute.
The taxon was first formally described in 1760 by botanist Nikolaus von Jacquin.
Various sources give the number of stamens as being between 8 and 15. The fruit is round to slightly ovoid and about 6 millimetres (0.2 in) in diameter with smooth spines which are about 2 millimetres (0.1 in) long. The stems are covered in star-shaped (stellate) hairs. Its embryology was described by Venkata Rao in 1952.