⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35105242, with some changes.

Thamnium natalense subsp. borbonicum Kindb. is a synonym of Porotrichum usagarum Mitt.

This name is a synonym of Porotrichum usagarum Mitt..

The record derives from Tropicos which reports it as a synonym (record 35105242) with original publication details: Hedwigia 41: 240 240 1902.