Cheirodendron platyphyllum, also known as lapalapa, is a species of flowering plant in the ginseng family, Araliaceae, that is endemic to the islands of Oʻahu and Kauaʻi in Hawaii. It is a small tree, reaching a height of 8 m (26 ft) and a trunk diameter of 20 cm (7.9 in). Lapalapa inhabits wet forests and bogs at elevations of 670–1,520 m (2,200–4,990 ft).

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