Few flowers of this species observed in September. Plant at 3450 ft. in the Kilauea Iki crater. Endemic to Hawaiian Islands and part of the Silversword Alliance of species.
This area consists of cinders from a 1959 eruptive event and is around 3760 ft. in elevation. D. scabra is common here and blooming in November. This plant is endemic and part of the Silversword alliance.