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Southern or annual wild rice (Z. aquatica), also an annual, grows in the Saint Lawrence River, the state of Florida, [5] and on the Atlantic and Gulf coasts of the United States. [6] [7] Texas wild rice is a perennial plant found only in a small area along the San Marcos River in central Texas. One species is native to Asia:
Growing along the Niger River, where the species was first domesticated . It is highly likely that humans have independently domesticated two different rice species. African rice is very genetically similar to wild African rice (), as Asian rice is to wild Asian rice (O. rufipogon), and these two divisions have wide genetic differences betwe
Oryza rufipogon is a species of flowering plant in the family Poaceae. [2] [3] It is known as brownbeard rice, [4] wild rice, [5] and red rice. [5] In 1965, Oryza nivara was separated off from O. rufipogon. The separation has been questioned, [6] and now many sources consider O. nivara to be a synonym of O. rufipogon. [7]
The rice plant can grow to over 1 m (3 ft) tall; if in deep water, it can reach a length of 5 m (16 ft). A single plant may have several leafy stems or tillers.The upright stem is jointed with nodes along its length; a long slender leaf arises from each node. [1]
Ecosystems involving upland rice are often relatively diverse, including fields that are level, gently rolling, or steep. Such ecosystems also occur at altitudes up to 2,000 m, with average annual rainfall ranging between 1,000 mm to 4,500 mm. Soils used to grow upland rice range from highly fertile to highly weathered, infertile, and acidic soil.
Zizania latifolia, known as Manchurian wild rice [5] (Chinese: 菰; pinyin: gū), is the only member of the wild rice genus Zizania native to Asia. It is used as a food plant. Both the stem and grain are edible. Gathered in the wild, Manchurian wild rice was an important grain in ancient China.
Echinochloa colonum, commonly known as jungle rice, wild rice, deccan grass, jharua or awnless barnyard grass, [1] is a type of wild grass originating from tropical Asia. It was formerly classified as a species of Panicum. It is the wild ancestor of the cultivated cereal crop Echinochloa frumentacea, sawa millet. [2]
Rice can come in many shapes, colours and sizes. This is a list of rice cultivars, also known as rice varieties.There are several species of grain called rice. [1] Asian rice (Oryza sativa) is most widely known and most widely grown, with two major subspecies (indica and japonica) and over 40,000 varieties. [2]