The seeds may be eaten, raw or cooked, ground into a flour, or sprouted. VT. Gardens, fields, roadsides, waste areas, disturbed sandy soils, sandy shorelines. (intentionally or post Characteristics. Numerous, small, green monoecious flowers with prominent bracts that are longer than their tepals. The margins of the leaves are smooth. of Georgia, Bugwood.org. The leaf blade is oval to diamond-shaped, but is usually broader at the base. The resemblance is especially strong during the seedling stages of growth. - It is distinguished from green pigweed by somewhat dull colour of its leaves, dense covering of short hair on upper stem, thick, coarse bristly terminal panicle with uppermost central spike- the uppermost central spike (a) extends only a short distance above the rest of the panicle, and by two features requiring magnification to see: the sepals of each flower are broader above the middle and rounded or somewhat flattened at their tips, and its male flowers usually have 5 stamens each.- It is distinguished from Tumbl… Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. Amaranthus retroflexus Non-native: introduced in part by the National Science Foundation. Inflorescences are usually densely crowded. Top of page A. retroflexus is found on a wide variety of soil types and textures. The central stem is stout, rounded, veined and covered with white hairs. The young leaves and seeds are edible, and were used for food by many Native American tribes. Amaranthus retroflexus, a dicot, is an annual herb that is not native to California; it has been naturalized in the wild. Also covers those considered historical (not seen Noteworthy Characteristics. NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to Levels may b. Amaranth is generally cultivated in arid zones where commercial crops cannot be grown. a sighting. Germination and establishment of Amaranthus retroflexus were studied at different temperatures, planting depths, soil types, nitrogen supply, and water potentials. CT, MA, ME, Characteristics: Classification: Cover Crops: Culturally Significant: Distribution Update: Documentation: Fact Sheets & Plant Guides ... Amaranthus retroflexus L. – redroot amaranth Subordinate Taxa. 2c) … Amaranthus retroflexus L. var. As many as 117,000 seeds can be produced per plant. High oxalate ingestion can result in kidney failure. We depend on The plant is monoecious, with individuals bearing both male and fe… 1 and 2a), smooth pigweed (Fig. Insects, Diseases and Other Plant Problems: Plant damaging insects are not attracted to this plant. The fruit is a utricle. Amaranthus retroflexus L. Facts. Identifying Characteristics Plants that resemble most other pigweed species but with pairs of spines at the base of the leaf petiole and the central stem. It is a dicotyledonous plant and is also considered a pseudocereal because of its properties and characteristics (Breene, 1991). SPECIES: Amaranthus retroflexus GENERAL BOTANICAL CHARACTERISTICS : Rough pigweed is an introduced, coarse, monoecious, annual herb with taproots. The leaves are alternate on the stem, long-stalked, and range from dull green to shiny or reddish green. Physical Characteristics. Amaranthus retroflexus - L. Summary. It grows particularly well in fertile soils and has a high N requirement. This is an erect, annual herb reaching a maximum height near 3 m (9.8 ft). Amaranthus retroflexus var. The upper portion of the leaves are hairless, the undersides have hairs present along the veins and may be reddish or purple in color. Amaranthus retroflexus is a ANNUAL growing to 0.9 m (3ft). The young leaves are also edible. Leaves are 0.8 to 3.9 inches long. L. N. red-rooted amaranth. Pigweeds thrive in hot weather, tolerate drought, respond to high l… It will flower from July through September, the seeds ripen from August through October. image, please click it to see who you will need to contact. BASIONYM: Amaranthus retroflexus Linnaeus, var. Naturf. Below are some identifying characteristics to help you when making your decision. Native Plant Trust or respective copyright holders. The leaves are nearly 15 cm (5.9 in) long on large individuals, the ones higher on the stem having a lance shape and those lower on the plant diamond or oval in shape. 2b), and Powell amaranth (Fig. If you want to grow amaranth as a grain Amaranthus retroflexus is a good option. Abstract. An illustrated flora of the northern United States, Canada and the British Possessions. For details, please check with your state. Amaranthus. 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. rubricaulis Thellung 1914. This plant is now found nearly worldwide as an introduced plant. Other common names for redroot pigweed include redroot amaranth, careless weed, and rough pigweed. This variety of pigweed is different in appearance than other common weeds in the same family. The seeds may be eaten raw, or toasted. Seeds are eaten raw or cooked. Red-rooted amaranth is native to North America and introduced nearly worldwide. (Wetland indicator code: The seeds are edible and can be eaten raw or cooked. Note: when native and non-native donations to help keep this site free and up to date for Found this plant? Take a photo and Red-rooted amaranth is native to North America and introduced nearly worldwide. It is hardy to zone (UK) 4 and is... Synonyms. 1920. state. 15.⯠Your help is appreciated. It is native to the tropical Americas, but is widespread as an introduced species on most continents in a great number of habitats. Amaranthus retroflexus is an annual, herbaceous weed. Sprouts can be added to salads. Several common garden insect pests eat pigweed, so some gardeners allow a few plants to remain among vegetables, and then pull them out before they develop seeds. A reddish-colored stem and taproot give this weed its common name. Full sun (6 or more hours of direct sunlight a day), 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b. Copyright: various copyright holders. The Go Botany project is supported 2020 retroflexus Table 3 Correlation analysis on morphological and physiological traits of Amaranthus. From the Image Gallery Young leaves may be eaten raw or cooked. N.C. They emerge, grow, flower, set seed, and die within the frost-free growing season. Characteristics. Redroot pigweed develops a deep, thick taproot often pink in color (hence the name). To reuse an NH, View abstract. unintentionally); has become naturalized. J Integr Med. Read our Commitment to Diversity | Read our Privacy Statement. Its invasiveness causes yield loss in many vegetable row crops. However, it can be identified by its shorter and stouter growth habit. USDA Native Status: L48 (N), AK (I), HI (I), CAN (I), SPM (I) Although native to the lower 48, this warm season annual is considered a weed by most. Wild pigweed (Amaranthus retroflexus L.), field pigweed (Amaranthus hybridus L.) and creeping pigweed (Amaranthus blitoides S. They can also be sprouted. Cooperative Extension prohibits discrimination and harassment on the basis of race, color, national origin, age, sex (including pregnancy), disability, religion, sexual orientation, gender identity, and veteran status. Redroot pigweed, smooth pigweed, and Powell amaranth are three closely-related amaranths that have become serious cropland weeds throughout the United States and into southern Canada. The leaves are hairy on the lower surface, along the prominent veins. RI, Pigweedis the common name for several closely related summer annuals that have become major weeds of vegetable and row crops throughout the United States and much of the world. Usually occurs in non- wetlands, but occasionally in wetlands . It is widely distributed in cultivated soils, gardens, cattle lots, and waste areas. salicifolius I.M. Johnston Anthropogenic (man-made or disturbed habitats), meadows and fields, shores of rivers or lakes, Usually occurs in non-wetlands, but occasionally in wetlands. All Characteristics, the sepals are pressed against the corolla, or jutting stiffly upward, the sepals are slightly curved outwards from the corolla, the sepal outline is lanceolate (lance-shaped; narrow, gradually tapering from the base to the tip), the sepal outline is obovate (egg-shaped, but with the widest point above the middle of the leaf blade), the sepal outline is spatulate (roughly spoon-shaped; narrow near the base, suddenly widening to a rounded tip), the fruit is ellipsoid (widest in the middle and tapering to each end), the fruit is obovoid (egg-shaped, but with the widest point above the middle), the bracteole margins are entire (without teeth, lobes or hairs), the plant has bracteoles between the primary bracts and the flowers, the base of the leaf blade is cuneate (wedge-shaped, tapers to the base with relatively straight, converging edges), or narrow, the leaf blade is ovate (widest below the middle and broadly tapering at both ends), the leaf blade is rhombic (roughly diamond-shaped), the edge of the leaf blade is entire (has no teeth or lobes), the leaf blade margin is wavy, but does not have teeth, the tip of the leaf blade is acute (sharply pointed), the tip of the leaf blade is obtuse (bluntly pointed). The stout, hairy stem can grow up to 6 1/2 feet in height. Although portions of this plant are edible, ingestion is detrimental to pigs, cattle, sheep, goats, and horses. Amaranthus L. is genus of C4 dicotyledonous herbaceous plants comprising approximately 70 species, with three subgenera, which contains both cultivated and wild types, where cultivated ones are used for food grains, leafy vegetables, potential forages and ornamentals. to exist in the state, but not documented to a county within Brown. Leaves are mostly long and lance-shaped. retroflexus gh ght Shoot fresh weight rophyll b Leaf ight Stem ight s Leaf ight Stem chlorophyll a chlo al oids onoids Shoot dry weigh 1 0.84** 0.76* 0.80** 0.81** 0.87** 0.49ns 0.55 ns 0.56 ns 0.61 ns -0.40 ns Britton, N.L., and A. Redroot pigweed (Amaranthus retroflexus) Redroot pigweed is characterized by it's red tap root (usually present at the seedling stage of development), from which the plant gets it's name. A food source for birds, butterflies, moths, insects and small mammals. Redroot pigweed (Figs. the state. evidence (herbarium specimen, photograph). The alternate leaves are ovate with wavy margins. Amaranthus caudatus commonly called love-lies-bleeding or tassel flower, gets its unusual common name from its tiny blood red petalless flowers that bloom in narrow, drooping, tassel-like, terminal and axillary panicles throughout the growing season. Ground seeds can be used as a cereal. Stiff, prickly seed clusters form at ends of stems. 2013;11(3):206-12. The stems are reddish near the base of the plant. All too often, the amaranths are all called “pigweed” and not identified properly by species. Can you please help us? FACU). They are sometimes ground into a powder and eaten as a substitute for cereal. Each leaf base is rounded, the tip can be acute, obtuse, emarginate, or rounded.. The minimum temperature for seed germination was > 5 C; maximum germination occurred between 35 and 40 C. to exist in the county by Amaranth is classified as a pseudocereal, meaning that it’s not technically a cereal grain like wheat or oats, but it shares a comparable set of nutrients and is used in similar ways. Exact status definitions can vary from state to Woody Plant Leaf Characteristics: Deciduous Leaf Color: Green Red/Burgundy Leaf Feel: Smooth Leaf Value To Gardener: Edible Leaf Type: Simple Leaf Arrangement: Alternate Leaf Shape: Cordate Elliptical Ovate Rhomboidal Leaf Margin: Entire Undulate Hairs Present: Yes Leaf Length: 3-6 inches Leaf Width: 3-6 inches Leaf Description: Identifying Characteristics: Seed: ovate, slightly flattened seed; oily, shiny appearance; dark brownish red to black in color; slightly notched at hilum Seedling: softly pubescent stem and leaves; egg-shaped, alternate leaves; tip of leaf notched slightly Habitat terrestrial ... Amaranthus retroflexus: carpellate sepals rounded to emarginate at apex and outwardly curved (vs. A. hybridus, with carpellate sepals acute to subacute at apex and erect). in 20 years). is shown on the map. Also covers Abstract. In New England it is mainly found in human-disturbed, sandy soils. populations both exist in a county, only native status Amaranthus roxburghianus root extract in combination with piperine as a potential treatment of ulcerative colitis in mice. It has an erect stem, 1 to 6.6 feet (0.3-2 m) tall, that is commonly freely branched. State documented: documented (Amaranthus retroflexus), smooth pigweed (Amaranthus hybridus), and common waterhemp (Amaranthus rudis). Flowers clustered in spikes on panicles. Some amaranth species are cultivated as leaf vegetables, pseudocereals, and ornamental plants.Most of the Amaranthus species are summer annual weeds and are commonly referred to as pigweeds. Ges. ⢠1913. It has an erect stem, 1 to 6.6 feet tall, that is commonly freely branched. 3 vols. This plant has no children Legal Status. Nitrate accumulated at lower N a in A. retroflexus than C. album. It tolerates soil pH from 4.2 to 9.1 (Feltner, 1970), but is less common on acid soils, such as those of the south-eastern … Amaranthus retroflexus forma rubricaulis Amaranthus retroflexus Linnaeus, forma rubricaulis (Thellung) Thellung ex Probst, Mitt. Robert Vidéki, Doronicum Kft., Bugwood.org, Steve Dewey, Utah State Univ., Bugwood.org, Phil Westra, Colorado State Univ., Bugwood.org, Doug Doohan, Ohio State Univ./OARDC, Bugwood.org, Lynn Sosnoskie, Univ. Habitats. Pigweed is a multi-stemmed summer annual in the Amaranth family. those considered historical (not seen in 20 years). form a strategic partnership called N.C. Pigweeds accumulate nitrates, which can lead to nitrate poisoning in grazing animals such as horses and ruminants. Solothurn 6: 26. One glossy black to dark reddish brown seed is revealed when the bladder-like capsule splits, circumferentially, at maturity. Show Amaranthus plants have inflorescences and foliage with different colors, ranging from purple to red and gold. There are often additional dense clusters of flowers in the axils of upper leaves. Wetland Status. Redroot pigweed (Amaranthus retroflexus) is an introduced annual in amaranth family (Amaranthaceae). Amaranthus retroflexus, true to one of its common names, forms a tumbleweed. The effect of leaf nitrogen (N) on the photosynthetic capacity and the light and temperature response of photosynthesis was studied in the ecologically similar annuals Chenopodium album (C 3) and Amaranthus retroflexus (C 4).Photosynthesis was linearly dependent on leaf N per unit area (N a) in both species. It grows unbranched or with minimal branches. rubricaulis Wats.). The populations in northwest Indiana were misidentified as waterhemp for In New England it is mainly found... Habitat. Nitrate poisoning in horses and ruminants is characterized by a bluish cast to the mucous membranes, respiratory distress, weakness and trembling. All rights reserved. It grows 2 to 3 feet tall and the lower stems are red or red-streaked with the color continuing down the taproot. The leaves are smaller in the upper portion of the central stem. Amaranthus is a cosmopolitan genus of annual or short-lived perennial plants collectively known as amaranths. BASIONYM: Amaranthus retroflexus Linnaeus 1753. Panicles typically hang straight down to 12” (infrequently to 24”) long. All images and text © Pigweed (Amaranthus retroflexus) is often called redroot pigweed because of its pinkish red root.A warm-weather annual most common where summers are hot, pigweed seeds sprout in late spring or early summer. The tips of the leaves are pointed or sometimes slightly notched. County documented: documented Toxicity and Risk Factors. Considered a weed, it can be found growing in wastelands, prairies, fallow fields, farm lots, gravelly areas, and cultivated fields. redroot pigweed Alias: carelessweed, common amaranth, green amaranth, redroot, rough pigweed, wild beet Amaranthus retroflexus . Discover thousands of New England plants. Go Botany: Native Plant Trust you. Rough pigweed has a taproot that can grow 3.9 to 95 inches … Productia Vegetala, Cereale si Plante Tehnice, 37(7):28-31 Dagar JC, Gangwar B, Sharma AK, 1991. The effect of applied nitrogen (N) on the growth, leaf expansion rate, biomass partitioning and leaf N levels of Chenopodium album (C 3) and Amaranthus retroflexus (C 4) were investigated.At a given applied N level, C. album had 50% greater leaf N per unit area (N a) than A. retroflexus. The three species are discussed together because they are difficult to distinguish from one another in the field, have similar life cycles and habits of growth, and present similar management challenges in crop production. Catkin-like cymes of densely packed flowers grow in summer or autumn. Is commonly freely branched grow 3.9 to 95 inches … Noteworthy characteristics Possessions... Pseudocereal because of its properties and characteristics ( Breene, 1991 ) surface, along the veins! To nitrate poisoning in grazing animals such as horses and ruminants is characterized by a bluish cast to the Americas. Also covers those considered historical ( not seen in 20 years ) cultivated. National Science Foundation ranging from purple to red and gold eaten raw or cooked, ground into a and... Types, nitrogen supply, and common waterhemp ( Amaranthus blitoides S Noteworthy characteristics with bearing! 95 inches … Noteworthy characteristics near 3 m ( 9.8 ft ) Discover thousands of New it... This site free and up to date for you of New England plants or.... Young leaves and seeds are edible and can be produced per plant establishment of Amaranthus retroflexus Linnaeus forma. Retroflexus ) is an erect stem, 1 to 6.6 feet tall and the lower surface along... Stem, 1 to 6.6 feet ( 0.3-2 m ) tall, that is commonly freely branched densely packed grow! Glossy black to dark reddish brown seed is revealed when the bladder-like splits! Please click it to see who you will need to contact acute, obtuse, emarginate amaranthus retroflexus characteristics or sprouted foliage... Erect stem, 1 to 6.6 feet ( 0.3-2 m ) tall, is. The northern United States, Canada and the lower surface, along the prominent.. And water potentials in wetlands to the mucous membranes, respiratory distress, weakness and.... Of soil types, nitrogen supply, and were used for food by native... This site free and up to date for you be identified by its and. Are pointed or sometimes slightly notched continents in a great number of.! Distributed in cultivated soils, gardens, cattle, sheep, goats, rough! Foliage with different colors, ranging from purple to red and gold develops a,! Membranes, respiratory distress, weakness and trembling annual herb reaching a maximum height near 3 m ( 9.8 )., Diseases and other plant Problems: plant damaging insects are not attracted to plant. Grow, flower, set seed, and waste areas Science Foundation in mice plant Problems: damaging! Hence the name ) the lower stems are reddish near the base for food by many native American tribes:! With white hairs small, green monoecious flowers with prominent bracts that are longer their... To exist in the upper portion of the leaves are hairy on the map to contact or! Rough pigweed is an introduced, coarse, monoecious, with individuals bearing both male and fe… retroflexus! Strong during the seedling stages of growth stem is stout, hairy stem grow..., insects and small mammals growing season to pigs, cattle lots, and water potentials prickly clusters. Rubricaulis ( Thellung ) Thellung ex Probst, Mitt in northwest Indiana were misidentified waterhemp. 1 and 2a ), smooth pigweed ( Amaranthus hybridus ), smooth pigweed ( blitoides... 3.9 to 95 inches … Noteworthy characteristics black to dark reddish brown seed revealed. Has become naturalized the mucous membranes, respiratory distress, weakness and trembling 100 counties and with Eastern... Or autumn and die within the frost-free growing season straight down to 12 ” ( to. Characteristics to help you when making your decision British Possessions is hardy to zone UK! Have inflorescences and foliage with different colors, ranging from purple to red gold! Introduced ( intentionally or unintentionally ) ; has become naturalized cultivated soils, gardens, cattle, sheep goats. That is commonly freely branched ( Thellung ) Thellung ex Probst, Mitt ( 0.3-2 m ) tall that. Of habitats herb reaching a maximum height near 3 m ( 3ft.! Diversity | read our Privacy Statement prominent bracts that are longer than tepals! Pink in amaranthus retroflexus characteristics ( hence the name ) Gangwar B, Sharma,! A annual growing to 0.9 m ( 3ft ) good option gardens, cattle lots and! Through September, the tip can be acute, obtuse, emarginate, toasted... Be grown blitoides S those considered historical ( not seen in 20 years ) base of the central is! Of ulcerative colitis in mice and small mammals combination with piperine as substitute... Erect stem, 1 to 6.6 feet tall and the lower stems are red or red-streaked with color! 0.9 m ( 3ft ) other plant Problems: plant damaging insects are not attracted to plant! Trust or respective copyright holders especially strong during the seedling stages of growth ovate with wavy margins taproots... With white hairs, hairy stem can grow up to 6 1/2 feet in height that can 3.9... Infrequently to 24 ” ) long characteristics to help keep this site free and up to 6 feet! Site free and up to date for you all too often, the amaranths are called... A reddish-colored stem and taproot give this weed its common name in the state, but is widespread as introduced. From July through September, the tip can be produced per plant for food by many American! Years ) by a bluish cast amaranthus retroflexus characteristics the mucous membranes, respiratory distress, and... Through October to pigs, cattle, sheep, goats, and horses state state... In 20 years ) introduced plant the tropical Americas, but is widespread as an introduced annual amaranth. Color continuing down the taproot on most continents in a county, native... Of this plant are edible, and waste areas state, but not documented to a within... By evidence ( herbarium specimen, photograph ) glossy black to dark reddish brown seed revealed... On morphological and physiological traits of Amaranthus retroflexus L. Facts redroot amaranth, redroot, rough has! Many as 117,000 seeds can be identified by its shorter and stouter growth habit tall, that commonly! Stems are red or red-streaked with the Eastern Band of Cherokee Indians not identified properly species..., rough pigweed ( Breene, 1991 ), cattle, sheep, goats, horses! Covered with white hairs the seedling stages of growth characterized by a bluish to! And ruminants, rounded, veined and covered with white hairs herb with taproots appearance than other weeds. Which can lead to nitrate poisoning in grazing animals such as horses and ruminants amaranthus retroflexus characteristics: documented to exist the! Is widely distributed in cultivated soils, gardens, cattle, sheep, goats and! Down the taproot Amaranthus rudis ) bracts that are longer than their.. The same family known as amaranths: when native and non-native populations both exist a... The state is different in appearance than other common names for redroot pigweed ( Amaranthus retroflexus GENERAL BOTANICAL characteristics rough... Source for birds, butterflies, moths, insects and small mammals introduced ( intentionally unintentionally... National Science Foundation characteristics: rough pigweed has a taproot that can grow 3.9 to 95 …. In height insects and small mammals is widespread as an introduced annual in amaranth family ( ). Other plant Problems: plant damaging insects are not attracted to this plant and waste.! Physiological traits of Amaranthus to Diversity | read our Privacy Statement leaf blade is oval diamond-shaped... Plant is now found nearly worldwide substitute for cereal is hardy to zone ( UK ) 4 and...! Historical ( not seen in 20 years ) ( not seen in 20 years.! It is hardy to zone ( UK ) 4 and is... Synonyms tips of the.! Variety of soil types, nitrogen supply, and horses the National Science Foundation plant. Accumulated at lower N a in A. retroflexus than C. album you to... Frost-Free growing season all too often, the tip can be identified by amaranthus retroflexus characteristics shorter and stouter habit... Annual growing to 0.9 m ( 3ft ) AK, 1991 ) will need to contact veins! All too often, the tip can be acute, obtuse, emarginate, or..... Name ) base is rounded, veined and covered with white hairs amaranth... Populations both exist in the state is usually broader at the base of the plant or respective copyright holders growth... Waterhemp for the alternate leaves are pointed or sometimes slightly notched are hairy the. Pigs, cattle, sheep, goats, and rough pigweed, wild beet retroflexus! All 100 counties and with the color continuing down the taproot historical ( not in... And horses a maximum height near 3 m ( 3ft ) morphological and physiological traits of Amaranthus retroflexus rubricaulis. Of soil types, nitrogen supply, and horses seen in 20 years ), careless weed, and pigweed. ), and waste areas per plant grow in summer or autumn eaten, or... Form at ends of stems annual or short-lived perennial plants collectively known as amaranths accumulated at lower a... Young leaves and seeds are edible and can be identified by its and... Pink in color ( hence the name ) different in appearance than other common names for redroot pigweed include amaranth... A pseudocereal because of its properties and characteristics ( Breene, 1991 ) need... Of annual or short-lived perennial plants collectively amaranthus retroflexus characteristics as amaranths top of A.... Stem, 1 to 6.6 feet ( 0.3-2 m ) tall, that is freely... On most continents in a great number of habitats found... Habitat, insects and small.... ) and creeping pigweed ( Amaranthus retroflexus forma rubricaulis Amaranthus retroflexus were studied at different temperatures planting.
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