| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Hydrangea macrophylla subsp. macrophylla | Kokee Camp 10 Road: Garden at Plew's residence | Preserved_Specimen | Grow to 7' high, w/inflorescenses 15' across; no fruit, seed or seedlings observed. | Plews, J.H.R. | Kauai | BISH | 1986-10-23 | ||
| 2 | Hydrangea macrophylla subsp. macrophylla | Kau Distr., Hawaii Volcanoes Natl. Park, Kilauea Military Camp, beside Administration Office at KMC | Preserved_Specimen | Shrub to ca 4 ft tall. Lvs opposite, firm membranous, yellowish green. Infl bracts blue, rarely pink. | Staples, G.W. | 536 | Hawaii | BISH | 1990-01-09 |