F9. White Hibiscus

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The white hibiscus is native to Kauai.  This is a shrub or small tree 15 to 20 feet in length and can reach up to 30 feet in diameter.  The leaves are oval with a smooth upper surface and smooth or slightly toothed edges.  The leaves are 4 to 6 inches long and often have red veins and stems.  The single white flowers are pinwheel shaped, up to 4 inches across, and borne at the ends of the branches.  The staminal column is pink to red (except in subspecies immaculatus which has a white column).  The flowers may be slightly pink or may age to pale pink, and are slightly fragrant.  In cultivation, Hibiscus arnottianus blooms almost continuously.