Inconspicuous Hawaiian Flowers Shown here are Hawaiian plants with inconspicuous flowers. Breynia disticha – Snowbush Casuarina equisetifolia – Common Ironwood Cecropia obtusifolia – Trumpet Tree Dodonaea viscosa – Florida Hopbush Melinis minutiflora – Molasses Grass Miconia calvescens – Velvet Tree 1 of 21>Last