Redroot pigweed (Amaranthus retroflexus) Redroot pigweed seed has a similar lenticular shape, notched hilum and glossy surface as tall water-hemp. As an obligate initial community species, rough pigweed needs bare, disturbed sites in order to establish [ … Dunn (1905) described it as `now very common in most parts of Europe, including England`, but later changes in distribution are unclear. Vormt rechtopstaande goed vertakte stengels met dikke groenwitte pluimen. Hedlund, T., tJber die Moglichkeit, von der Ausbildung des Weizens in Herbst auf die Winterfestigheit der verschiedenen sorten zu schliessen. Amaranthus gangeticus (wordt ook wel ‘Elephant Head’ genoemd) Amaranthus tricolor (ook wel Tampala genoemd; En dan zijn er nog flink wat hybriden. Weed Seed Bank and Seedling Biology Where Found. ... A plane filled with amaranth seeds, top view, can be used as a background. Seeds were held in … Phytotoxical effect of Lepidium draba L. extracts on the germination and growth of monocot (Zea mays L.) and dicot (Amaranthus retroflexus L.) seeds Toxicol Ind Health. Epub 2013 Jan 4. Common Name(s): red-root amaranth [English] redroot pigweed [English] careless weed [English] rough pigweed [English] redroot amaranth [English] Taxonomic Status: Current Standing: accepted Data Quality Indicators: Record Credibility Rating: Amaranthus retroflexus is an erect, annual plant with a stem that can be unbranched or branched only near the top; it can grow 20 - 150cm tall, occasionally to 200cm[270. A. retroflexus was known in gardens by 1759, and escapes, of which the earliest on record was in 1853, have been reinforced by introductions with shoddy, bird-seed and soya-bean waste. This is a much under-utilized weed of cultivated fields and disturbed ground (can be invasive). A single seeded utricle may reach 2 mm in length, wrinkling when dry. Packet(standard): $3.50; 1/8 oz: $4.00; 1/4 oz: $7.50; 1/2 oz: $14.00; 1 oz: $26.00 - 25,000 seeds/oz seed. Spermatophyta – Seed plants Division: Magnoliophyta – Flowering plants Class: Magnoliopsida – Dicotyledons Subclass: Caryophyllidae Order: Caryophyllales ... Amaranthus retroflexus L. – redroot amaranth Subordinate Taxa. redroot pigweed. Amaranthus retroflexus. Het geslacht komt met zo'n zestig soorten wijdverspreid voor van gematigde tot tropische streken. Amaranthus hybridus: sepals of fruit-bearing flowers acute at apex and inflorescence with many, short, croweded, thick branches of flowers (vs. A. retroflexus, with sepals of fruit-bearing flowers rounded to truncate at apex and inflorescence with few to many, slender, lax branches of flowers). Chem. Amaranthus … Amaranthus retroflexus ← → Other Common Names: careless weed. Am. Branch of flowering amaranth at sunny summer day in meadow. Beautiful bush of amaranth. A proximate analysis of seed of com- mon pigweed, Amaranthus retroflexus L. Jour. Frysk: Pappegaaikrûd. Characteristics and usage: Edible leaves and seeds Amaranthus retroflexus, like all amarants, rosette leaves are edible to make boiled soups along with other herbs. 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. SPECIES: Amaranthus retroflexus FIRE ECOLOGY OR ADAPTATIONS : Rough pigweed seeds are an important part of the seedbank in many habitats, even when plants are almost absent [ 16 ]. Synoniemen: Amarantus retroflexus Familie: Amaranthaceae (Amarantenfamilie). Amaranthus retroflexus, Red-root amaranth, 10 to 80cm, flower VII to IX, annual, plant community: ruderal, culinary herb, weight of 1000 seeds = 0,45 gram Pertinent Synonyms & Notes (particularly those used in California; go to GRIN for other synonyms). The Plants Database includes the following 49 species of Amaranthus . Jan Kępczyński, Paweł Sznigir, Response of Amaranthus retroflexus L. seeds to gibberellic acid, ethylene and abscisic acid depending on duration of stratification and burial, Plant Growth Regulation, 10.1007/s10725-012-9774-3, 70, 1, (15-26), (2012). Fall moldboard plowing in plots with high seed populations reduced redroot pigweed emergence the following spring by more than 90 percent (from 3,500 to 250 per 10 square feet), but plowing fields in which seed production had been prevented for six years brought deeply buried seeds to the surface, and thereby increased emergence from 1 to 25 per 10 square feet. Tot het geslacht behoren verscheidene sier- en voedselgewassen. Amaranthus retroflexus seed germination was decreased by sorghum extracts, and sorghum extract concentration of 20% inhibited seed germination. circumferentiallySeeds are black to red-brown, lenticular, smooth, shiny, and 1 to 1.3mm long (Hultén 1968, Mosyakin and Robertson Habit. The glossy black seeds each form inside a 2 mm long utricle that splits open at maturity. Papegaaienkruid (Amaranthus retroflexus) is een eenjarige plant uit de amarantenfamilie (Amaranthaceae).De van oorsprong Noord-Amerikaanse soort is een kosmopoliet die inmiddels in alle werelddelen voorkomt, ook in grote delen van Europa.. De plant wordt 20 tot 100 cm hoog en heeft een vrij dikke, gegroefde, dicht behaarde, ruwe, rechtopgaande, aan de voet roodachtige stengel met korte … Mature Amaranthus retroflexus L. seeds (lot 46) were collected near Beltsville, Maryland, in August, 1966, and held at -10 C in sealed containers. redroot pigweed, rough pigweed. De grote, elliptische bladeren zijn groen, iets behaard aan de onderkant en eetbaar. 9. salicifolius I.M. It grows on every continent on … They were germinated in lots of 100 in Petri dishes on filter paper moistened to a shiny appearance with tap water. Dark germination of Amaranthus retroflexus L. seeds at 35° increased after several days of prechilling at 20° or lower. Amaranthus retroflexus var. Deutsch: Gekrümmter Fuchsschwanz. Zaait zich spontaan uit. Eng. This plant has no children Legal Status. Amaranthus retroflexus komt oorspronkelijk uit N-Amerika maar komt nu ook voor in bijna gans Europa. Irradiation with far-red light for short periods during the early hours of a prechilling period at 10° inhibited subsequent dark germination at 35°. En ‘Klaroen’ is bijvoorbeeld ook een Amaranthus, en ook ‘Bayam’, en ‘Calaloo’ (hoewel ‘Callaloo’ vaker wordt gebruikt). Groeit langs waterkanten, bermen, akkers, braakliggende gronden. Red-root pigweed (Amaranthus retroflexus) seeds and capsuleOpen New Window Pigweed is 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. Papegaaienkruid - Amaranthus retroflexus. Amaranthaceae. 2015 Mar;31(3):247-54. doi: 10.1177/0748233712471702. (Amaranthus retroflexus): An erect summer annual that may reach 6 1/2 feet in height. Description (diagnostics are in brown). Johnst. Plants that resemble most other pigweed species but with pairs of spines at the base of the leaf petiole and the central stem. retroflexus may be best-suited to systems with moderate tillage, because its seeds are well-adapted to shallow burial. Abstract. Isolated on a white background. Naamgeving (Etymologie): Amaranthus komt van het Griekse a (niet) en marainomai (ik verwelk), omdat de bloemen wel verdrogen, maar niet afvallen. Ind. The shredded seeds can be used as the flour of cereals or mixed together enriching it with protein. products new description - Similar in all uses as Amaranthus hypchondriacus; this species has black seeds. 10:529- 530. Abstract. salicifolius I. M. Johnston Family: Amaranthaceae . It tastes similar to spinach. The results demonstrated that atrazine or tribenuron-methyl had carry-over effects on the F1 generation of A. retroflexus. rough pigweed. To release their dormancy at the above temperatures, the seeds were stratified at a constant temperature (4 °C) under laboratory conditions or at fluctuating temperatures in soil or by outdoor burial in soil. 1918. Français: Amarante réfléchie. Selective focus. Primary Disseminule Type. Each utricle splits open in the middle to expose a single glossy black to dark brown seed that is 1 to 1.2 mm long and ovate (Virginia Tech Weed Identification Guide, 2005). Redroot pigweed seed is larger by up to 0.5 mm, has a pronounced rim, and is black. Amarant (Amaranthus) is een geslacht van eenjarige, kruidachtige planten uit de amarantenfamilie (Amaranthaceae). Invasiveness Rank: ... seed each and tops that open . Tall water-hemp seeds do not have a rim and are reddish-brown. Amaranthus retroflexus Red-root amaranth, redroot pigweed, common amaranth, pigweed amaranth, and common tumbleweed. Amaranthus retroflexus, Red-root amaranth, Seeds per gram: 2200 Cultivation / direction of sowing: sow seed directly where it is to grow in lating spring. Seed Fruit. Amaranthus retroflexus var. Pertinent Common Names (particularly those used in California; go to GRIN for other common names). Family: Amaranthaceae Common Names: Amaranth, Pigweed Description: Amaranth grows in disturbed soil from dry to moist climates. Amaranthus retroflexus (redroot pigweed) is another small-seeded summer annual dicotyledon species that has responded inconsistently to changes in tillage systems. English: Common Amaranth. 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