Clematicissus angustissima
Clematicissus angustissima is a vine in the Vitaceae family, endemic to the Geraldton area of Western Australia.
The species was first described as Vitis angustissima in 1859 by Ferdinand von Mueller, from a specimen collected by Augustus [Frederick Oldfield|Oldfield] on the Murchison [River (Western Australia)|Murchison River]. In 1887Jules [Émile Planchon| Jules Planchon] reassigned it to his newly described genus, Clematicissus, with Clematicussus angustissima being the type species.