wild rice

"Indian rice" redirects here. The wildflower Fritillaria camschatcensis is sometimes also called "Indian rice" or "wild rice".

Wild Rice
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Monocots
(unranked):	Commelinids
Order:	Poales
Family:	Poaceae
Genus:	Zizania Gronov. ex L.
Species
Zizania aquatica L. Zizania aquatica var. angustifolia Hitchc. Zizania aquatica subsp. angustifolia (Hitchc.) Tzvelev Zizania aquatica var. aquatica Zizania aquatica subsp. aquatica Zizania aquatica var. brevis Fassett Zizania aquatica subsp. brevis (Fassett) S.L. Chen Zizania aquatica var. interior Fassett Zizania aquatica var. latifolia (Griseb.) Kom. Zizania aquatica var. subbrevis B. Boivin Zizania aristata (Retz.) Kunth Zizania bonariensis Balansa & Poitr. Zizania caduciflora (Turcz. ex Trin.) Hand.-Mazz. Zizania ciliata (Retz.) Spreng. Zizania clavulosa Michx. Zizania dahurica Turcz. ex Steud. Zizania effusa Sm. Zizania fluitans Michx. Zizania interior (Fassett) Rydb. Zizania latifolia (Griseb.) Turcz. ex Stapf Zizania lenticularis (Michx.) Steud. Zizania mezii Prod. Zizania microstachya Nees ex Trin. Zizania miliacea Michx. Zizania mutica Larrañaga Zizania palustris L. Zizania palustris var. interior (Fassett) Dore Zizania palustris subsp. interior (Fassett) S.L. Chen Zizania palustris var. palustris Zizania palustris subsp. palustris Zizania subtilis (Tratt.) Raspail Zizania terrestris L. Zizania texana Hitchc.

Wild rice is any of the four species of plants that make up the genus Zizania (common names: Canada rice, Indian rice, and water oats), a group of grasses that grow in shallow water in small lakes and slow-flowing streams; often, only the flowering head of wild rice rises above the water. The genus is closely related to true rice, genus Oryza, which is also a grass, and shares the tribe Oryzeae. Three species of wild rice are native to North America:

• Northern wild rice (Zizania palustris) is an annual plant native to the Great Lakes region of North America, the aquatic areas of the Boreal Forest regions of Alberta, Saskatchewan and Manitoba. Northern wild rice is the state grain of the U.S. state of Minnesota. Harvesting wild rice by canoe is still practiced in these regions.
• Wild rice (Z. aquatica), also an annual, grows in the Saint Lawrence River and on the Atlantic and Gulf coasts of the United States.
• Texas wild rice (Z. texana) is a perennial plant only found in a small area along the San Marcos River in central Texas.

One species is native to Asia:

• Manchurian wild rice (Z. latifolia; incorrect synonym: Z. caduciflora), is a perennial native to China.

Downstream from the headwaters of the San Marcos Springs, Aquarena Springs, and Spring Lake in Texas.

Texas wild rice is in danger of extinction due to loss of suitable habitat in its limited range and to pollution. The pollen of Texas wild rice can only travel about 30 inches away from a parent plant. If pollen does not land on a receptive female flower within that distance, no seeds are produced.^[1] Manchurian wild rice has almost disappeared from the wild in its native range, but has been accidentally introduced into the wild in New Zealand and is considered an invasive species there.^[2]

Use as a food grain

Harvesting wild rice.

The species most commonly harvested as grain is the annual species Zizania palustris. Native Americans and non-Indians harvest wild rice by canoeing into a stand of plants, and bending the ripe grain heads with wooden sticks called knockers, so as to thresh the seeds into the canoe.

The size of the knockers, as well as other details, are prescribed in state and tribal law. By Minnesota statute, knockers must be at most 1 inch in diameter, 30 inches long, and one pound in weight.^[3] The plants are not beaten with the knockers but require only a gentle brushing to dislodge the mature grain. The Ojibwa people call this plant manoomin meaning "good berry". Some seeds fall to the muddy bottom to overwinter and germinate in the spring. Wild rice and maize are the only cereal crops native to North America. It is a favorite food of dabbling ducks and other aquatic wildlife.

Uncooked wild rice.

Almost always sold as a dried whole grain, wild rice is high in protein, the amino acid lysine and dietary fiber, and low in fat. Like true rice, it does not contain gluten. It is also a good source of the minerals potassium and phosphorus, and the vitamins thiamine, riboflavin and niacin.

Cooked wild rice.

Because of its nutritional value and taste, wild rice increased in popularity in the late 20th century, and commercial cultivation began in the US and Canada to supply the increased demand. In the US the main producers are California and Minnesota (where it is the official state grain) and it is mainly cultivated in paddy fields. In Canada, it is usually harvested from natural bodies of water; the largest producer is the province of Saskatchewan. Wild rice is also produced in Hungary and Australia. In Hungary, cultivation started in 1974 on the rice field of Szarvas.^{[citation needed]} The Indian Rice Ltd. was founded in 1990. Now, the Hungarian wild rice growing and processing is managed only by this company. In Australia production is controlled by Ricewild Pty. Ltd. at Deniliquin in Southern New South Wales.^{[citation needed]}

Manchurian wild rice (Chinese: 菰; pinyin: gū), gathered from the wild, was once an important grain in ancient China. Because of the difficulty of its domestication, it gradually lost importance with increasing population density, as its habitat was converted for use in raising rice. It is now very rare in the wild, and its use as a grain has completely disappeared in China, though it continues to be cultivated for its stems.

Use as a vegetable

The swollen crisp white stems of Manchurian wild rice are grown as a vegetable, popular in East and Southeast Asia. The swelling occurs because of infection with the smut fungus Ustilago esculenta. The fungus prevents the plant from flowering, so the crop is propagated asexually, the infection being passed from mother plant to daughter plant. Harvest must be made between about 120 days and 170 days after planting, after the stem begins to swell but before the infection reaches its reproductive stage, when the stem will begin to turn black and eventually disintegrate.

The vegetable is especially common in China, where it is known as gaosun or jiaobai Other names which may be used in English include coba, makomo and water bamboo.

Importation of the vegetable to the United States is prohibited in order to protect North American species from the fungus.

Ornamental use

Wild rice is also grown as an ornamental plant in garden ponds.

Culture

Several Native American cultures, such as the Ojibwa, consider wild rice (known as manoomin in Ojibwa) to be a sacred component in their culture.^[4] The rice is harvested with a canoe: one person knocks rice into the canoe with a two small poles(called "knockers" or flails) while the other paddles slowly or uses a push pole. For these groups, this harvest is an important cultural (and often economic) event.

In the Parable of the Tares told by Jesus in the New Testament of the Christian Bible, the plant otherwise known as darnel or tares is described as zizania. This is the plural form of the Greek word ζιζάνιον (zizanion).

Diseases

See also

• Aquatic plants
• Camargue red rice - modern domesticated variety from the Camargue area of France.

Notes

External links

• Australian wild rice; information about cultivated wild rice in Australia
• ITIS 41318
• Save Our Rice Alliance; information on wild rice harvest, management and distribution across the Upper Great Lakes Region
• Multilingual taxonomic information from the University of Melbourne
• Asian Vegetables
• Zizania aquatica
• Photograph of rough harvested gaosun culms (not yet peeled)