御谷（Pennisetum glaucum），又名蜡烛稗、珍珠粟。

一年生草本。秆直立单生，花序以下密生柔毛，叶鞘平滑，叶舌不明显，具长纤毛，叶片扁平；圆锥花序，紧密呈柱状，主轴粗硬，小穗倒卵形，通常孪生呈束，具有纤毛；颖果，成熟时膨胀外露。

Pearl millet (Pennisetum glaucum) is the most widely grown type of millet. It has been grown in Africa and the Indian subcontinent since prehistoric times. The center of diversity, and suggested area of domestication, for the crop is in the Sahel zone of West Africa. Recent archaeobotanical research has confirmed the presence of domesticated pearl millet on the Sahel zone of northern Mali between 2500 and 2000 BC. Cultivation subsequently spread and moved overseas to India. The earliest archaeological records in India date to around 2000 BC, and it spread rapidly through India reaching South India by 1500 BC, based on evidence from the site of Hallur. Cultivation also spread throughout eastern and southern parts of Africa. Pearl millet is widely grown in the northeastern part of Nigeria (especially in Borno and Yobe states). It is a major source of food to the local villagers of that region. The crop grows easily in that region due to its ability to withstand harsh weather conditions like drought and flood. Records exist for cultivation of pearl millet in the United States in the 1850s, and the crop was introduced into Brazil in the 1960s.