Use of plants for food and medicine by Native Peoples of eastern Canada

摘要

At least 175 food plants and 52 beverage plants were gathered by Native Peoples in eastern Canada. Iroquoian agriculturalists of southern Ontario cultivated corn, beans, squash, tobacco, and sunflowers, and gathered the greatest variety of food plants. Southern and eastern Algonkian hunters and gatherers ate a wide variety of wild plant foods including fleshy fruits, nuts, greens, and underground parts. Little is known about the use of wild food plants by northern Cree and Naskapi.Nutritional data for gathered plants indicate that many of these species exceed conventional plant sources for vitamins and minerals. Vitamin A, vitamin C, calcium, iron, and fibre are particularly well represented in certain gathered plants. Some wild plant foods require special preparation or must be consumed in limited quantities because they contain toxic secondary metabolites.Over 400 plants are used in native medicine. Native medicine consists of rational and ritualistic components. Treatment of physical disorders, whose origin could be determined, was effective. At least 105 medicinal plants have a real effectiveness based on phytochemical constituents. Conifers were the most widely used group of plants in this category. Antibiotic monoterpenes, polyacetylenes and alkaloids, astringent tannins, and analgesic monoterpenes and salicylates are among the most rationally and widely used plant constituents.There is need for more research into nutritional constituents and pharmacological properties to assess the value and potential of plants used by Native People of eastern Canada.