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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Amaranthus palmeri ： ウィキペディア英語版 Amaranthus palmeri ''Amaranthus palmeri'' is a species of edible flowering plant in the amaranth genus. It has several common names, including Palmer's amaranth, Palmer amaranth, Palmer's pigweed, and carelessweed. It is native to most of the southern half of North America. Populations in the eastern United States are probably naturalized. It has also been introduced to Europe, Australia, and other areas. The plant is fast-growing and highly competitive. == Uses == The leaves, stems and seeds of Palmer amaranth, like those of other amaranths, are edible and highly nutritious.〔(), USDA PLANTS Database〕〔(), Native American Ethnobotany (University of Michigan — Dearborn)〕 Palmer amaranth was once widely cultivated and eaten by Native Americans across North America, both for its abundant seeds and as a cooked or dried green vegetable.〔 Other related ''Amaranthus'' species have been grown as crops for their greens and seeds for thousands of years in Mexico, South America, the Caribbean, Africa, India, and China. The plant can be toxic to livestock animals due to the presence of nitrates in the leaves.〔(), Cornell University Department of Animal Science, Plants Poisonous to Animals〕 Palmer amaranth has a tendency to absorb excess soil nitrogen, and if grown in overly fertilized soils, it can contain excessive levels of nitrates, even for humans. Like spinach and many other leafy greens, amaranth leaves also contain oxalic acid, which can be harmful to individuals with kidney problems if consumed in excess,.〔(), University of Pittsburgh Medical Center, Low-Oxalate Diet(pdf)〕 Because of its toxicity to livestock,〔 and scarce familiarity in the United States with the uses of amaranths as food, Palmer amaranth is rarely consumed nowadays, despite its ubiquity and resistance to drought. Unlike the grain and leaf amaranths of other regions, it has not been cultivated or further improved by recent agricultural breeding.〔(), Purdue University Center for New Crops and Plants Products: Amaranths〕 As a result, the primary economic importance of Palmer amaranth to American farmers has been as a noxious weed and a competitor to more marketable crops, rather than as a crop in its own right.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Amaranthus palmeri」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.