The species most commonly harvested as
grain are the annual species:
Zizania palustris and
Zizania aquatica. The former, though now domesticated and grown commercially, is still often gathered from lakes in the traditional manner, especially by indigenous peoples in North America; the latter was also used extensively in the past. The stems and root shoots also contain an edible portion on the interior.
Use by Native Americans Native Americans and others harvest wild rice by
canoeing into a stand of plants, and bending the ripe grain heads with two small wooden poles/sticks called "knockers" or "flails", so as to
thresh the seeds into the canoe. One person vans (or "knocks") rice into the canoe while the other paddles slowly or uses a push pole. The plants are not beaten with the knockers, but require only a gentle brushing to dislodge the mature grain. Some seeds fall to the muddy bottom and
germinate later in the year. 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 diameter, long, and weight. Several Native American cultures, such as the Ojibwe, consider wild rice to be a sacred component of their culture. The
Ojibwe people call this plant , meaning (commonly translated ). In 2018, the
White Earth Nation of Ojibwe granted certain rights (sometimes compared to
rights of nature or to granting it
legal personhood), including the right to exist and flourish; in August 2021, the Ojibwe filed a lawsuit on behalf of wild rice to stop the
Enbridge Line 3 oil sands pipeline, which puts the plant's habitat at risk. Tribes that are recorded as historically harvesting
Zizania aquatica are the Dakota, Menominee, Meskwaki, Ojibwe, Cree, Omaha, Ponca, Thompson, and Ho-Chunk (Winnebago). Native people who utilized
Zizania palustris are the Ojibwe, Ottawa/Odawa and Potawatomi. Ways of preparing it varied from stewing the grains with
venison stock and/or maple syrup, making it into stuffings for wild birds, or even steaming it into sweets like puffed rice, or rice pudding sweetened with maple syrup. In the United States, 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
Saskatchewan. Wild rice is also produced in
Hungary and
Australia. In Hungary, cultivation started in 1989.
Manchurian wild rice Manchurian wild rice (), gathered from the wild, was once an important grain in ancient China. 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. Like true rice, it does not contain
gluten. It is also a good source of certain minerals and B vitamins. One cup of cooked wild rice provides 5% or more of the daily value of
thiamin,
riboflavin,
iron, and
potassium; 10% or more of the daily value of
niacin,
vitamin B6,
folate,
magnesium,
phosphorus; 15% of
zinc; and over 20% of
manganese.
Dishes in Minnesotan cuisine Wild rice is a common ingredient in
Minnesotan cooking, it is a main ingredient in
Manoomin porridge,
wild rice pancakes,
hotdish,
wild rice soup,
cranberry wild rice bread, and
wild rice salad.
Safety Wild rice seeds can be infected by the highly toxic fungus
ergot, which is dangerous if eaten. Infected grains have pink or purplish blotches or growths of the fungus, from the size of a seed to several times larger. == Archaeology of wild rice ==