Japonica rice is a type of rice that is characterized by its short round grains and moist sticky texture when cooked It is a popular choice for dishes such as sushi onigiri and other dishes where the rice is meant to stick together Japonica rice is grown in many different countries including Japan the United States and China It is often grown in wetter cooler climates and is known for its ability to withstand colder temperatures and higher levels of moisture Japonica rice is also sometimes called short grain rice because of its short round grains When cooked it has a moist sticky texture and a slightly sweet nutty flavor It is often used in dishes that require the rice to hold together such as sushi rolls or onigiri