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 manoomin, meaning "harvesting berry" (commonly translated "good berry"). In 2018, the White Earth Nation of Ojibwe granted manoomin 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. For these groups, the harvest of wild rice is an important cultural (and often economic) event. The Omǣqnomenēwak tribe were named Omanoominii by the neighboring Ojibwa after this plant. Many places in Illinois, Indiana, Manitoba, Michigan, Minnesota, Ontario, Saskatchewan, and Wisconsin are named after this plant, including Mahnomen, Minnesota, and Menomonie, Wisconsin; many lakes and streams bear the name "Rice", "Wildrice", "Wild Rice", or "Zizania". Commercialisation Because of its nutritional value and taste,