Plants that fill a similar niche: Chenopodium album. Amaranthus palmeri is a species of edible flowering plant in the amaranth genus. Amaranthus palmeri is an erect annual plant with a branched stem that can grow 50 - 150cm tall, exceptionally to 300cm[270. Amaranthus palmeri is native to to the desert regions of the southwest United States and northern Mexico. Full sun (6 or more hours of direct sunlight a day). Each utricle contains one glossy black seed. form a strategic partnership called N.C. , Palmer amaranth is considered a threat most specifically to the production of cotton and soybean crops in the southern United States. Unlike the grain and leaf amaranths of other regions, it has not been cultivated or further improved by recent agricultural breeding. ", United States Environmental Protection Agency, "Herbicide resistance may change future of row crop farming in Southeast", "Waterhemp--Biology, Identification, and Management Considerations", "TDA seeking emergency approval for propazine", "EPA Denies Texas Emergency Weedkiller Request", "Palmer amaranth resistance to 2,4-D and dicamba confirmed in Kansas", "Resistance to PPO‐inhibiting herbicide in Palmer amaranth from Arkansas", "Resistant pigweed: the ultimate monkey wrench", "Palmer amaranth is a looming concern: This aggressive, herbicide resistance weed has been travelling north, and may be in our fields soon", "Palmer Amaranth – Weed of TWO Years – 2014-2015", https://en.wikipedia.org/w/index.php?title=Amaranthus_palmeri&oldid=990139135, Creative Commons Attribution-ShareAlike License, This page was last edited on 23 November 2020, at 01:04. The seeds are edible and can be eaten raw or cooked. , In 2014, North Dakota State University's "ND Weed Control Guide" selected Amaranthus palmeri, as "weed-of-the-year" to raise awareness about its "potentially devastating impact.  The male produces the pollen and the female plant produces the seed. In those situations, seeds are allowed to stay in their ideal emergence zone: the top inch of soil. The plant is self-fertile. Amaranthus palmeri aka Carelessweed, is one of 60 to 70 species in the genus, depending upon who’s counting. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. The plant is fast-growing (up to 1 inch a day) and highly competitive. The leaves can be cooked or dried. Victorian-era, A. caudatus is well-known for its rope-like tassels. In these conditions, many herbicides break down over time and Palmer amaranth will keep growing. , In 2019, Kansas State University researchers documented a population of Palmer amaranth with resistance to 2,4-D and Dicamba in Kansas. Amaranthus palmeri. Palmer amaranth was accidentally introduced to the southeastern US. It has several common names, including carelessweed, dioecious amaranth, Palmer's amaranth, Palmer amaranth, and Palmer's pigweed. Several amaranth species are useful as food crops and are grown both for their leaves and for their edible seeds, which are a nutritious … This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Amaranthus palmeri is an annual herbaceous plant that is spreading rapidly beyond its native range in North America as a result of human-mediated seed dispersal and the creation of new habitats through agricultural expansion (Ward et al., 2013). Palmer amaranth (Amaranthus palmeri) is a weedy annual originally native to the southwestern US and northern Mexico.It can grow several inches in a day, and a single plant can produce as many as one million seeds. Fields of Nutrition has medicinal benefits and vitamin/mineral content of Palmer's Amaranth. The leaves and seeds are eaten. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. 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.  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. Citation: AMARANTHUS PALMERI S. Watson, Proc. Humans easily transport the small seeds through grain, seed, or feed contamination; or on equipment such as combines. One plant can produce up to 500,000 seeds. Weed Science, Vol. Most pigweeds are tall, erect-to-bushy plants with simple, oval- to diamond-shaped, alternate leaves, and dense inflorescences (flower clusters) comprised of many small, greenish flowers. Male and female flowers form on separate plants (dioecious). Male and female flowers form on separate plants (dioecious). 1. The flowers form on spikes up to 18 inches long. We demonstrate that GR A. palmeri has become established in a Japanese port in less than 10 years from the first report of GR A. palmeri in the US. It is native to most of the southern half of North America. It is also known as Amaranthus hypochondriacus, Amaranthus frumentaceus, Amaranto, Chua, Amaranthus leucocarpus, Red Cockscomb, Velvet Flower. Manure is one of them. The leaves, stems and seeds of Palmer amaranth, like those of other amaranths, are edible and highly nutritious. It is adapted to heat and extremely low rainfall. Grain yield reductions were recorded at earlier A. palmeri establishment timings (i.e., 0 and 1 WAE) compared with 8 WAE establishment timing in 2014 and 2015. Amaranth, (genus Amaranthus), genus of 60–70 species of flowering plants in the family Amaranthaceae, distributed nearly worldwide. This ameranth has rapid seed germination and growth and larger root structures than other species. 2001 Sida 19:931--974, 975--992; Sauer 1967 Ann Missouri Bot Gard 54:103--137 Its life-cycle is adapted to desert conditions; it will germinate and grow to quickly produce abundant seed when water is available. Pigweeds (Amaranthus spp.) Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S. In addition, the seed is spread by traditional means, such as harvesting, inadequate cleaning of equipment, and the spreading of infested materials, such as manure. The leaves, stems and seeds of Palmer amaranth, like those of other amaranths, are edible and highly nutritious. Palmer amaranth seeds are rather small and thrive in no-till or minimum tillage fields. It has also been introduced to Europe, Australia, and other areas. Amaranthus palmeri is native to to the desert regions of the southwest United States and northern Mexico. Amaranthus retroflexus. Amaranthus caudatus L., Amaranthus cruentus L., Amaranthus hypochondriacus L. frequently cultivated as ornamentals, occasionally escaping from cultivation.  In 2001, Palmer amaranth was found in the southern quarter of Illinois and appeared to be moving to northern Illinois in 2006. Previously, Palmer amaranth in Kansas has developed resistance to ALS, atrazine, glyphosate and HPPD herbicides—mesotrione, Huskie, Laudis, Impact, and Armezon—leaving growers with very few postemergence options to manage this weed. This species was reported 8 Plants can reach heights of over 2 m and produce 600 000 seeds per female inflorescence. A. cruentus features arched or upright plumes. It produces abundant seed, but these seed are tiny and not held in a seed head that is easily harvestable. Background. Cultivation and flaming are most effective on plants that are less than 1 inch tall. ":5 In 2015, Palmer amaranth was chosen as "weed-of-the-year" for the second year in a row as a "proactive approach to prevent Palmer amaranth establishment in North Dakota. Palmer amaranth. Read our Commitment to Diversity | Read our Privacy Statement. Leaf-blades are elliptical to diamond-shaped with pointed tips, and measure 0.6–3 inches long by 0.4–1.5 inches wide. 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