| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Costus afer | Koloa District. National Tropical Botanical Garden, McBryde Garden in Lawai Valley. Zingiberales collection near Pump House 6 behind pump keeps cottage. | Cultivated. | Preserved_Specimen | Clumping perennial herb, stems 3-3.5 meters tall. Leaves palin green. Inflorescence basal and terminal, bracts with brown-red margins, visited by ants; flowers white, labellum white with yellow throat within. | Lorence, D.H. | 10526 | Kauai | BISH | 2015-07-15 |
| 2 | Costus afer | Waimea Arboretum & Botanical Garden. | In full sun. | Preserved_Specimen | Dense clump 1.5 m tall. Flowers white to cream, except for a canary yellow strip on the inner surface of the lip. Flower odorless. | Lau, J. | 2688 | Oahu | BISH | 1986-07-28 |