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Hibiscus arnottianus, Hawaiian White Hibiscus, Hau hele, O'ahu White Hibiscus

Hibiscus arnottianus

Hawaiian White Hibiscus, Hau hele, O'ahu White Hibiscus
Family: Malvaceae
Origin: Hawaii
Large shrub 5-10 ft tallSmall tree 10-20 ftFull sunSemi-shadeRegular waterWhite, off-white flowersFragrant

Hibiscus arnottianus is a Hawaiian endemic plant with one endangered subspecies. It is native to the moist to wet forests of the mountains of Moloka'i and O'ahu.

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. Hibiscus arnottianus flowers usually have a weak fragrance. But, flowers have the most scent in the early morning when flowers open or in the early evening before they close.

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