Pteronia ("resin daisies") is a genus of evergreen, woody perennial plants assigned to the family Asteraceae with currently 76 described species.
Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, surrounded by an involucre of bracts.
He had not seen living plants or dried herbarium specimens, but based his description on an etching made by the English botanist Leonard Plukenet in 1700.
The leaves are mostly arranged in a cross, in some in a spiral or alternate, and rarely opposite and may also be hairless, variously hairy and glandular, or have a row of hairs around the margin.
[1] The species of Pteronia can be found in Botswana, Eswatini, Mozambique, Lesotho, Namibia, South Africa, Zambia and Zimbabwe.