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Oryza is a genus of plants in the grass family. [ 3 ] [ 4 ] It includes the major food crop rice (species Oryza sativa and Oryza glaberrima ). Members of the genus grow as tall, wetland grasses, growing to 1–2 metres (3–7 ft) tall; the genus includes both annual and perennial species.
Oryza segetalis Russell ex Steud. Oryza sativa, having the common name Asian cultivated rice, [2] is the much more common of the two rice species cultivated as a cereal, the other species being O. glaberrima, African rice. It was first domesticated in the Yangtze River basin in China 13,500 to 8,200 years ago. [3][4][5][6]
Oryza punctata is a caespitose (tussock forming) annual hydrophyte (grows in/on water). [3] [10] The culm base of O. punctata is spongy and greater than 4 mm in diameter.The culm is glabrous (smooth and without hairs) and striate (parallel longitudinal grooves); it is erect or geniculately (bent like a knee) ascending and from 50–120 cm tall with 3–5 nodes.
For other uses, see Rice (disambiguation). Rice plant (Oryza sativa) with branched panicles containing many grains on each stem Rice grains of different varieties at the International Rice Research Institute Rice is a cereal grain and in its domesticated form is the staple food of over half of the world's population, particularly in Asia and Africa. Rice is the seed of the grass species Oryza ...
Oryza glaberrima, commonly known as African rice, is one of the two domesticated rice species. [ 1 ] It was first domesticated and grown in West Africa around 3,000 years ago. [ 2 ][ 3 ] In agriculture, it has largely been replaced by higher-yielding Asian rice (O. sativa), [ 2 ] and the number of varieties grown is declining. [ 1 ]
Short-grain glutinous rice from Japan Long-grain glutinous rice from Thailand Glutinous rice flour. Glutinous rice (Oryza sativa var. glutinosa; also called sticky rice, sweet rice or waxy rice) is a type of rice grown mainly in Southeast East Asia, the northeastern regions of India and Bhutan which has opaque grains, very low amylose content, and is especially sticky when cooked.
Black rice. Black rice, also known as purple rice or forbidden rice, is a range of rice types of the species Oryza sativa, some of which are glutinous rice. There are several varieties of black rice available today. These include Indonesian black rice, Philippine heirloom balatinaw black rice and pirurutong black glutinous rice, and Thai ...
Japonica rice (Oryza sativa subsp. japonica), sometimes called sinica rice, is one of the two major domestic types of Asian rice varieties. Japonica rice is extensively cultivated and consumed in East Asia, whereas in most other regions indica rice is the dominant type of rice. Japonica rice originated from Central China, where it was first ...