⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35105260, with some changes.

Thamnium pennaeforme var. brachyphyllum Dixon 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 35105260) with original publication details: Trans. Roy. Soc. South Africa 18: 257 257 1929.