Henry George Flanagan (22 January 1861 – 23 October 1919) was a Cape Colony-born plant collector, traveller, botanist and farmer.
[1] He developed a renowned garden for native South African trees and rare exotic plants.
A rare endemic of Eastern Cape, Greyia flanaganii is one of several plants named in his honour.
Both the museum's director Selmar Schonland and the South African Government botanist Peter MacOwan recognised Flanagan's work.
They travel and did research at the Great Kei River, Bethulie, Heilbron, Molteno, Aliwal North, Pondoland, Burgersdorp, Port St. Johns, Kimberley, Northern Cape, Lesotho, Robben Island, Rhodesia and Mont-Aux-Sources.
The Greyia flanaganii, a spring flowering, South African shrub with bright red, bell shaped petals, is named after Flanagan.