Grevillea trichantha Olde, a third species with hairy flowers in the Triloba Group (Proteaceae: Grevilleoideae: Hakeinae) from the Marchagee Track, south-west Western Australia

Abstract

Grevillea trichantha Olde, a rare species in the Triloba Group is described. It appears to be most closely related to another rare species, G. metamorpha Makinson and is more common, though its localised distribution still requires a high conservation priority. Grevillea trichantha is the third species in the Triloba Group in which the perianth is consistently, but not always uniformly, hairy. A short key differentiating the three species is provided.