This orchid, a hybrid between Vanda hookeriana and Vanda teres is hardy and
free-flowering. Described by the first director of the Singapore Botanic
Gardens Mr H.N. Ridley in 1893, this was the first orchid hybrid to be
described from Singapore. Ridley named the plant after Agnes Joaquim in
whose garden the hybrid originated. It was selected to be the National
Flower of Singapore in 1981.