- Breynia disticha – Snowbush
- Casuarina equisetifolia – Common Ironwood
- Cecropia obtusifolia – Trumpet Tree
- Dodonaea viscosa – Florida Hopbush
- Melinis minutiflora – Molasses Grass
- Miconia calvescens – Velvet Tree
- Pistia stratiotes – Water Lettuce
- Ricinus communis – Castor Bean
- Saccharum officinarum – Sugarcane
- Setaria palmifolia – Palmgrass
- Styphelia tameiameiae – Pukiawe
Inconspicuous Flowers
Listed here are the Hawaiian plants on this site with inconspicuous flowers.