 The Araceae genus "Nebrownia" was named in his honour by Otto Kuntze.A number of plants bear the specific name ""nebrownii"" - such as "Acacia nebrownii", "Gibbaeum nebrownii", "Caralluma nebrownii" and "Lithops olivacea v nebrownii", as does a waterhole in the Etosha National Park.He was awarded the Captain Scott Memorial Medal by the South African Biological Society in recognition of his work on SA flora, and in 1932 an honorary D.Sc.