- Bougainvillea spp. – Bougainvillea
- Canna indica – Indian Shot
- Cordia subcordata – Kou
- Costus woodsonii – Indian Head Ginger
- Crassocephalum crepidioides – Redflower Ragleaf
- Crocosmia × crocosmiiflora – Montbretia
- Delonix regia – Royal Poinciana
- Grevillea robusta – Silk Oak
- Heliconia bihai – Macaw Flower
- Heliconia latispatha – Expanded Lobster Claw
- Heliconia psittacorum – Parakeet Heliconia
- Hibiscus rosa-sinensis – Chinese Hibiscus
- Hibiscus tiliaceus – Hau
- Lantana camara – Lantana
- Melinis minutiflora – Molasses Grass
- Melochia umbellata – Melochia
- Metrosideros polymorpha – 'Ohi'a Lehua
- Plumeria rubra – Frangipani
- Sanchezia spp. – Sanchezia
- Senna alata – Emperor's Candlesticks
- Spathodea campanulata – African Tulip Tree
- Strelitzia reginae – Bird of Paradise
- Thevetia peruviana – Be-still Tree
- Thunbergia alata – Blackeyed Susan Vine
- Tropaeolum majus – Nasturtium
Orange Flowers
Listed here are all of the Hawaiian plants with conspicuous orange flowers on this site. Note: Some of the plants listed below may not yet have images available in this color.