| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Argemone glauca × Argemone mexicana | East Island, upper Paia, behind gymnasium in weedy field | Preserved_Specimen | Robust 2 m plant; Flwrs pale yellow, large. Sterile capsules not producing seed, small plants growing near typical A. mexicana. | Hobdy, R.W. | 1770 | Maui | BISH | 1983-06-12 | |
| 2 | Argemone glauca × Argemone mexicana | East Maui, Makawao District, Kanaio Natural Area Reserve, below the highway near east boundary | Lowland Dry Forest with Erythrina, Diospyros, Sideroxylon, Myoporum, Psydrax, Rauvolfia, Leucaena. Both putative parents nearby. Many immature and seedling plants nearby in goat ravaged area. | Preserved_Specimen | Erect prickly herbs with yellow sap, flowers large, pale yellow. | Oppenheimer, H.L. | 62004 | Maui | BISH | 2020-06-24 |