Blue Flowers
- Ageratum houstonianum* (Blue Billygoat Weed, Dark Bluetop)
- Alpinia zerumbet (Shell Ginger, Pink Porcelain Lily)
- Anisomeles malabarica
- Anisomeles malabarica
- Canarium australianum (Mango Bark, Brown Cudgeree)
- Clerodendrum ugandense (Blue Butterfly Bush, Blue Glorybower)
- Clitoria ternatea (Clitoria, Butterfly Pea)
- Clitoria ternatea* (Butterfly Pea)
- Commelina ensifolia (Scurvy Grass, Wandering Jew)
- Commelina ensifolia* (Scurvy Grass, Wandering Jew)
- Crotalaria verrucosa (Blue-flowered Rattlepod)
- Cyanotis axillaris
- Dianella caerulea (Blue flax lily, Blueberry lily, Paroo lily)
- Duranta erecta (Pigeonberry, Skyberry, Golden Dewdrop)
- Eichhornia crassipes* (Water Hyacinth)
- Elaeocarpus angustifolius (Silver Quandong, Quandong)
- Endiandra hypotephra (Northern Rose Walnut)
- Eranthemum pulchellum* (Blue Sage, Blue Eranthemum)
- Heliotropium indicum* (Heliotrope, Indian Heliotrope)
- Hemigraphis reptans (Hemigraphis)
- Hybanthus enneaspermus (Blue Spade Flower)
- Hyptis suaveolens* (Horehound, Mint Weed)
- Ipomoea indica* (Blue Morning Glory, Purple Morning Glory)
- Ipomoea nil* (Morning glory)
- Petrea volubilis (Blue Petrea, Purple Wreath)
- Praxelis clematidea* (Praxelis)
- Rostellularia adscendens (Pink Tongues)
- Ruellia tweediana* (Mexican Petunia)
- Salvia misella* (Salvia)
- Solanum mauritianum* (Wild Tobacco)
- Solanum seaforthianum* (Brazilian nightshade)
- Stachytarpheta cayennensis* (Snakeweed)
- Stachytarpheta jamaicensis* (Snakeweed)
- Thunbergia grandiflora (Blue thunbergia, Blue trumpet vine)
- Thunbergia grandiflora* (Blue Thunbergia, Blue Trumpet Vine)
- Trichodesma zeylanicum* (Camel Bush)