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Korthalsia(family Palmae) A genus of climbing palms (rattans) in which the leaves have an ochrea and a terminal spiny whip, and the leaflets are diamond-shaped, their upper margins toothed. The inflorescences are terminal (the stem dying after flowering), and burst through the leaf sheath. The flowers are hermaphrodite, and single. The fruits are scaly. The stems are hard and durable, and occasionally branched. They are widely utilized, and sometimes sold. There are 25 species, found in rain forests from Burma to New Guinea.