Pteronia hirsuta is a resprouting shrublet reaching 15 cm to 30 cm in height. The plant is much-branched, its upper branches hairy.
The species distribution is in the Western Cape from Piketberg and Tulbagh to the Cape Peninsula and eastwards to the Little Karoo and Mossel Bay. The photo was taken at the Minwater farm near Oudtshoorn.
The habitat is fynbos and renosterveld slopes and flats in clayey soils. The species is not considered threatened in habitat early in the twenty first century.
The species is heavily browsed by game and stock, particularly after fire (Curtis-Scott, et al, 2020; Vlok and Schutte-Vlok, 2015; Bond and Goldblatt, 1984; iNaturalist; http://redlist.sanbi.org).