What is Rumex garipensis Meisner. Rumex garipensis, collected by DREGE near the Orange River in South Africa has been re-found some 140 years later in South West Africa. The examination of the rich material revealed its identity with the Russian R. marschallianus. It may be as early an introduction as Potentilla supina (= P. gariepina), found in the same places by DREGE and still existing there.