| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Hygrophila corymbosa | Koolaupoko Distr., Waimanalo. Grown in garden at 41-964 Kakaina St. | Cultivated aquatic ornamental. Grown in ceramic pot on deck under translucent plastic roofing, bright indirect light. | Preserved_Specimen | Plant rooted underwater in gravel substrate, submerged stem ca 10 long, emerging above water and producing aerial leaves and blue-purple flowers; aerial leaves coarser, darker olive green. | Staples, G.W. | 1233 | Oahu | BISH | 2006-08-09 |
| 2 | Hygrophila corymbosa | Waimea Arboretum & Botanical Garden, Haleiwa | Rooted in the muck at edge of a pond. In full sun. | Preserved_Specimen | A diffuse subshrub; foliage has some beet red coloration; spicy odor. Corollas a blend of orchid and purple. | Lau, J. | 2366 | Oahu | BISH | 1986-05-05 |
| 3 | Hygrophila corymbosa | Shipment of aquatic plants received at Honolulu International Airport from Singapore | Preserved_Specimen | Flowers bluish purple. | Hoe, W.J. | 5349 | Oahu | BISH | 1993-04-02 | |
| 4 | Hygrophila corymbosa | Shipment of aquatic plants received at Honolulu International Airport from Singapore; destined for Kahaluu Tropicals | Preserved_Specimen | Stems coarse, 4-sided; leaves opposite, blades reddish green above, lighter below; infl. axillary, dichasial, cor pale lavender on limb, tube white. | Hoe, W.J. | 519 | Oahu | BISH | 1989-12-13 |