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Ophiopogon (lilyturf) is a genus of evergreen perennial plants native to warm temperate to tropical East, Southeast, and South Asia. Despite their grasslike appearance, they are not closely related to the true grasses, the Poaceae. The name of the genus is derived from Greek ὄφις ophis, 'snake' and πώγων pogon, 'beard', most probably referring to its leaves and tufted growth. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Convallarioideae (formerly the family Ruscaceae). Like many lilioid monocots, it was formerly classified in the Liliaceae.