Triumfetta pentandra A.Rich.

An annual herb very like T. rhomboidea in general appearance but much more sparingly hairy, never being more than stellate-pubescent, the leaves as a rule are thinner-textured, the stamens are usually fewer and often about five; the most important differences, however, are in the fruit which is ovoid, not globose, glabrous, not tomentose, except for the prickles which are ascending and densely ciliate on their upper sides below their uncinate apices.

Found in a range of habitats including gallery forest, woodland, grassland, marshy locations, old cultivations and disturbed locations, often in partial shade at elevations from sea level to 1,700 metres. It is also a weed in cultivated land.

Can be grown by cuttings or seedlings.