 The species was first collected during a ten @-@ day visit to the island of Nihoa by the Tanager Expedition . Botanist Edward Leonard Caum collected the first specimen on June 17 , 1923 , and a second was collected by cartographer Charles S. Judd on June 20 , 1923 . Forest B. H. Brown , botanist of the Bayard Dominick Expedition to the Marquesas Islands ( 1921 – 1922 ) , helped provide descriptions and comments for some of the species described by Erling Christophersen and Caum . They named A. brownii after Brown in 1931 with the publication of their paper " Vascular plants of the Leeward Islands , Hawaii " . In the paper they originally described A. brownii as one of 20 vascular plant species on the island of Nihoa . The FWS does not recognize a common name . 
