Citation: PERSICARIA MACULOSA Gray, Nat. Gray or . California county polygons can be turned off and on in the layer control box. Also known as Persicaria maculosa, the flowers attracts Halictid bees, wasps, and Syrphid flies. Cotyledons seedlings are elliptic to lanceolate in outline, with hairs along the margins. Crops. Tillage is not generally an option in wet areas. Polygonum persicaria L. syn. This all indicates widespread variation in the species. Repeated mowing to prevent seed production can also reduce populations over time (Plantwise 2013). J Environ. It has been introduced to North America and is naturalised throughout the mainland continent,[15] growing along roadsides, riverbanks, and on fallow ground. A summer annual weed of horticultural, agronomic, and nursery crops that may reach 3.5 feet in height. Willow weed (which was formerly called Polygonum persicaria) grows well under moist conditions, thriving under the wet conditions often experienced in newly planted crops in spring. Persicaria houdt van vochtige grond die goed gedraineerd is. Soort Gezien in Jabbeke - Noordhoek (NHJB) jaar. You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner. Cell Physiol. Polygonum persicaria Other names: Heartweed, Lady's thumb, Ladysthumb, Ladysthumb Smartweed, Smartweed, Spotted Knotweed, Spotted Ladysthumb, Spotted Smartweed, Persicaria, Redleg, Willow weed Family: Polygonaceae. 4.1 lady’s thumb (Persicaria maculosa) 4.2 Japanese knotweed (Polygonum cuspidatum) 4.3 giant knotweed (Polygonum sachalinese) 5 Control Recommendations - treat before fruit/seed maturation. Active materials. Like P. maculosa, P. pensylvanica also has shorter and more erect racemes but those of P. maculosa are typically a bit shorter and more slender. A yellow dye can be produced from this plant with alum used as a mordant. inval. ex Steud.) Polygonum persicaria . ... Redshank [Persicaria maculosa] Print. Biol. Maximum height - 110 cm, the plant has a taproot, and stem from him - a single, branched, erect or ascending. The leaves are alternate and almost stalkless. Persicaria maculosa (Polygonaceae) (known as lady’s thumb) is an annual morphologically variable weed that is widely distributed in Chile. De Duizendknoop is een sterke plant die vrijwel nooit problemen heeft met ziektes of plagen. Kim, TH, SK Ku and JS Bae. 228(4)696-703. The stems are usually light green, round, and glabrous or slightly pubescent. Family: Buckwheat or Smart… Read on for information about mile-a-minute weed control. Chemical control. Biological Although P. persicaria plants are susceptible to Arabis mosaic virus, no research has been undertaken on the development of biological control agents, whether viral or fungal. Persicaria maculosa Gray is an accepted name This name is the accepted name of a species in the genus Persicaria (family Polygonaceae). There are six stamens, two fused carpels and two styles. The leaves and young shoots may be eaten as a palatable and nutritious leaf vegetable. Use on-going for up to … science. This plant is a source of persicarin which is viewed as a candidate therapeutic for the treatment of severe vascular inflammatory diseases, such as sepsis or septic shock (Kim et al 2013). NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database. Species of flowering plant in the knotweed family Polygonaceae, International Code of Nomenclature for algae, fungi, and plants, "List of invasive species in the Great Lakes Great Lakes United / Union Saint-Laurent Grands Lacs", Biota of North America Program 2014 state-level distribution map, International Code of Nomenclature for algae, fungi, and plants (Melbourne Code), "The biology and non chemical control of Redshank (, photo of herbarium specimen at Missouri Botanical Garden, collected in Missouri in 1983, https://en.wikipedia.org/w/index.php?title=Persicaria_maculosa&oldid=982588813, Short description is different from Wikidata, Articles with failed verification from May 2019, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 October 2020, at 02:26. Stems erect to decumbent, rooting at the nodes, branched, 10–80 cm. Persicaria maculosa - is an annual plant belonging to the family Polygonaceae. It's quite lovely and virtually maintenance free. Its leaves and young shoots may be eaten, but this plant is not grown commercially for this purpose. Use on-going for up to one year. Plants occasionally grow to 4 feet tall, but even when mowed repeatedly smartweed often manages to produce flowers. Polygonum persicaria) is an annual plant in the buckwheat family, Polygonaceae. Common names include lady's thumb,[2] spotted lady's thumb, Jesusplant, and redshank. Persicaria maculosa contains persicarin and tannins. Persicaria maculosa (syn. This plant flowers from July to September in the temperate Northern Hemisphere. Life Cycle. NameThatPlant.net currently features 3816 plants and 23,855 images. Accessed 12/9/13. Persicaria maculosa. The leaves of grass are linear-lanceolate shape, and the base they are wedge-narrowed. http://www.missouriplants.com/Pinkalt/Polygonum_persicaria_page.html   Plantwise. 1821, nom. Ze trekken ook door de aanwezigheid van nectar insecten aan. [19] It does not like lime, and liming is cited as a means to fight it.[20][21]. The state of Minnesota in the USA has declared P. persicaria as a secondary noxious weed and several states have categorized it as invasive (USDA-NRCS, 2002). My groundcover is a mixture of persicaria maculosa threaded through violets with a few punctuations of spiderwort, pokeweed, persicaria odorata and morning glory up the fences. Contact. P. persicaria seems relatively quick to develop resistance to herbicides – most resources discourage use of chemical control or encourage rotation of herbicides with differing modes of action (Plantwise 2013). [3][4] It is widespread across Eurasia from Iceland south to Portugal and east to Japan. This species has fibrous roots with a shallow taproot. Although when growing in bare areas with few other plants around willow weed will scramble along the ground, it can also grow upright under some conditions such as within crops, becoming competitive with upright weeds such as fathen and black nightshade. The alternate … Family Name: Polygonaceae - Smartweed or Buckwheat Family. Proposals to conserve two names in Persicaria (Polygonaceae) [conserve Persicaria mitis (Schrank) Assenov & Persicaria maculosa Gray against Persicaria mitis Delabre]. Spotted ladysthumb (redshank, lady’s-thumb) Polygonum persicaria (Persicaria maculosa) Annual, seed-propagated weed with ramified taproot. Scabrous to sparsely puberulent annual. Hønsegress (Persicaria maculosa) Search for. Archived in Blomster, Caryophyllales, Planter, Slireknefamilien. Rhodora 50:64-66. Lake Michigan Field Station, 1431 Beach St., Muskegon, MI 49441-1098 (231) 759-7824 Products containing dicamba work best over others containing 2,4-D and glyphosate (Easy Butterfly Garden 2013). Learn more about Pink Smartweed. Mowing before flowering can reduce seed set. (15.2-76.2 cm) in height and can be either erect or sprawling. Hønsegress (Persicaria maculosa) Posted on 16 08 2013. Polygonum persicaria has a moderate beneficial impact in the Great Lakes. Mountain, W.L., 1989. Leaves short-petiolate; the blades lanceolate, 3–12 cm long, usually with a dark spot in the center that becomes obscure with drying; stipules brown below, scarious above, 4–10 mm long, papery, ciliate-margined, strigose to glabrous. Svinemelde (Atriplex patula) Next Post. Willow Weed Botanical name: Persicaria maculosa Family name: Polygonaceae Overview. It is being provided to meet the need for timely best science. Established and naturalized in all mainland states. It has been been demonstrated to removed >60% of nitrite from ground and surface water, but other aquatic macrophytes are available which are even more efficient at nitrite remediation (Rawat et al 2012). Geographic subdivisions for Persicaria maculosa: CA : MAP CONTROLS 1. Pre-emergent herbicides, especially with the chemical Dichlobenil, are effective. An annual, spreading by seed. Physical When handling smartweed, do not place hands close to eyes – it contains a chemical which burns. Persicaria ziektes en plagen. Polygonum agreste Fr., 1839 Polygonum benearnense Gand., 1882 Polygonum dubium Stein Polygonum lapathifolium subsp. Systemic herbicides to kill the fibrous roots can also work well. Persicaria maculosa . For many plants, the website displays maps showing physiographic provinces within the Carolinas and Georgia where the plant has been documented. NON-CHEMICAL CONTROL . If you rub this weed on horses, it can be used as an insect repellant for them. [11] It was first successfully transferred to the genus Persicaria by Samuel Frederick Gray in 1821, under the name Persicaria maculosa. Introduced from Europe, Lady’s Thumb can also be used for medical purposes. Flowers In the United States, it is very similar to Pennsylvania smartweed, but redshank has a fringe of hairs at the top of the ochrea, something which Pennsylvania smartweed lacks. Are you worried about controlling mile-a-minute weeds in your backyard? Older leaves are usually only slightly hairy. Short to medium, erect to sprawling, hairless, branched plant. Polygonum persicaria Polygonum lapathifolium 1 of 3 2013 P. maculata, P.maculosa, P. ruderalis, P. ruderalis, P. vulgaris, P. dubium, P. fusiforme, P. minus. No arthropods known to attack this species specifically have been identified (Plantwise 2013). vs. Persicaria mitis Delarbre 1800. Gray: PEMA24: Persicaria maculosa Gray: PEPE18: Persicaria persicaria (L.) Small, nom. The record derives from WCSP (in review) (data supplied on 2012-03-23) which reports it as an accepted name with original publication details: Nat. Stems have swollen nodes with papery sheaths (ocrea). Table 1. 2013. Arr. It is widespread across Eurasia from Iceland south to Portugal and east to Japan. Note: Check state/provincial and local regulations for the most up-to-date information regarding permits for control methods. West Region, Sacramento, CA. The leaves can be used as treatment for poison ivy and stomach pains. Cultural These plants grow in wet areas which are not usually grazed. Taxon 48: 829-830. The perianth (the corolla of infertile structures around the reproductive parts) of each tiny pink flower consists of four or five petal-like lobes that are fu… argentea Gray Persicaria mitis Delarbre, 1800 Persicaria vulgaris Samp. The stems, flowers and leaves can all be eaten cooked or raw, tasting similar to lettuce. You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner. Quite often on top of the leaves have a reddish stain. more_vert. Rawat, SK., RK Singh, and RP Singh. Leaves taper to short petioles, which have an ocrea that encircles the stem. 2008. Brit. The latter has narrower leaves, usually less than 1 cm wide. 1948. Like P. maculosa, P. pensylvanica also has shorter and more erect racemes but those of P. maculosa are typically a bit shorter and more slender. 2008. Mobiele applicaties Onze partners. Insects. Follow all label instructions. [7][8], Persicaria maculosa is an annual herb up to 80 cm (31 in) tall, with an erect rather floppy stem with swollen joints. Polygonum persicaria. Always read the label and product information before use. Fruit is a black achene. Plantwise Knowledge Bank Technical Factsheet: Redshank. Polygonum persicaria has a high socioeconomic impact in the Great Lakes. The ocreas of ladysthumb have stiff hairs arising from the top of the ocrea, which are approximately 2 mm long. Management of this species in agricultural settings focuses on elimination of seed as a contaminant and cultivation to prevent seedling establishment. It is also present as an introduced and invasive species in North America, where it was first noted in the Great Lakes region in 1843 and has now spread through most of the continent. Gray or . Persicaria maculosa 2, Perzikkruid, Saxifraga-Peter Meininger.JPG. Control of the noxious weed mile-a-minute (Polygonum perfoliatum) in reforestation. No need to register, buy now! The stems are sometimes, but far from always, flushed with red - hence the common name. View plant photos, descriptions, maps, treatment options, and more. Stems. Persicaria maculosa. coronavirus. Diseases. Persicaria maculosa - Redshank. California county polygons can be turned off and on in the layer control box. 5.1 Foliar Spray: FS-2; 5.2 Pre-Emergent Spray: PE-1; 6 Images from Bugwood.org As in this example, there are usually dark blotches, often shaped rather like arrowheads, on the leaves of this annual plant. Dat is één van de redenen waarom de plant veel in publiek groen, zoals op rotondes, wordt geplant. Op vers omgewerkte grond kan Perzikkruid snel ontwikkelen uit zaad dat in die grond heel lang kiemkrachtig blijft. Gaps in Knowledge/Research Needs Species; Additional images; Click here to support NatureSpot by making a donation - small or large - your gift is very much appreciated. † Populations may not be currently present. Alt Name. ... Invasive Plant Control, Inc., USDA Forest Service, USDA NRCS PLANTS Database, Lady Bird Johnson Wildflower Center, National Association of Exotic Pest Plant Councils, Species: P. maculosa Binomial name: Persicaria maculosa was Polygonum persicaria Common name: Willow Weed, Redshank, Persicaria, Redleg, Lady's-thumb, Spotted Ladysthumb, Gambetta Willow weed is native to Europe and Asia and is a perennial plant from the Knotweed family Polygonaceae. Geographic subdivisions for Persicaria maculosa: CA : MAP CONTROLS 1. 33:51-56. 3. Persicaria puritanorum: Pl. The stems are usually light green, round, and glabrous or slightly pubescent. some northern African countries. Tags Svartskog. However, in moist conditions, stem fragments can re-root allowing re-establishment after soil disturbance. It also appears on some local environmental weed lists (e.g. Wikipedia. Although when growing in bare areas with few other plants around willow weed will scramble along the ground, it can also grow upright under some conditions such as within crops, becoming competitive with upright weeds such as fathen and black nightshade. Monitored releases of Rhinoncomimus latipes (Coleoptera: Curculionidae), a biological control agent of mile-a-minute weed (Persicaria perfoliata), 2004–2008. Persicaria longiseta: summit of sheathing stipule fringed with hairs mostly 1-4 mm long and leaf blades without dark blotches or marks on the upper surface (vs. P. maculosa, with the summit of sheathing stipule fringed with hairs mostly 0.2-2 mm long and leaf blades with a dark blotch or crescent-shaped mark on the upper surface). What is Mile a Minute Weed? Pests of Persicaria maculosa (POLPE) Organism Type; Meloidogyne chitwoodi (MELGCH) Host * Zoon F, de Heij A (2004) Onkruiden als waardplanten van Meloidogyne chitwoodi en M. fallax. Many Polygonum species, including P. persicaria, are now placed by a number of authorities in the genus Persicaria, hence Stace (1991) uses the synonym Persicaria maculosa and Grierson and Long (1983) use Persicaria dolichopoda. Agrobase Canada. Lady's Thumb Persicaria maculosa Knotweed family (Polygonaceae) Description: This plant is a summer annual that is ½–2' tall and more or less erect, although individual plants may sprawl. Abstract Persicaria maculosa (Polygonaceae) has been used as edible and as medicinal plant since ancient times. Wisskirchen R and Kent DH. The inflorescence is a dense spike. maculosa: From Latin ‘macula’ blotch, meaning full of blotches or mottled Persicaria lapathifolia (L.) Gray or Polygonum lapathifolium L. Invasiveness Rank: The invasiveness rank is calculated based on a species’ ecological impacts, biological attributes, distribution, and response to control measures. This information is preliminary or provisional and is subject to revision. Northern Journal of Applied Forestry 12: 127-132. Persicaria maculosa (Polygonaceae) (known as lady’s thumb) is an annual morphologically variable weed that is widely distributed in Chile. Persicaria lapathifolia (L.) Gray or Polygonum lapathifolium L. Invasiveness Rank: The invasiveness rank is calculated based on a species’ ecological impacts, biological attributes, distribution, and response to control measures. Mammalian herbivores rarely feed on the foliage of this plant because the foliage is peppery, and slightly bitter. For more information, visit www.eddmaps.org Persicaria maculosa S.F. Common names include lady's thumb, spotted lady's thumb, Jesusplant, and redshank. It flowers from May to October. Brit. Smartweed (Polygonum pensylvanicum) and closely related lady's thumb (P. persicaria) are a shade gardener's worst nightmare, because they grow best in moist partial shade.Found throughout North America, these native annuals produce thousands of hard-coated seeds. Foliage Leaves are elongate, narrow and pointed at the base and tip. Invasive Plant Atlas of the U.S. 2010. NOAA | DOC. [18] It likes moist soils, particularly rich ones, and acid peaty loams. A thin membranous sheath called an ocrea encircles the stem at the base of each leaf petiole. Growing in tightly-packed elongated ellipsoidal groups, the tiny flowers of Persicaria maculosaare pale pink, but while in bud they are a much deeper pink. 1999. Thank you. Missouri Plants Database. Gray (=Polygonum persicaria L.) Lady’s-thumb Phyllostachys spp. Persicaria maculosa 1, Perzikkruid, Saxifraga-Rutger Barendse.JPG. store. Categories. [12] The name "Persicaria persicaria" cannot be used because tautonyms – binomial names that use the same word for both the genus and the species epithet – are prohibited by the International Code of Nomenclature for algae, fungi, and plants, and a replacement name (nomen novum) must be used. Persicaria maculosa Knotweed family (Polygonaceae) Description: This plant is a summer annual that is ½–2' tall and more or less erect, although individual plants may sprawl. Its common name ‘smartweed’ reflects that this plant contains a chemical compound which causes a burning sensation and mild irritation. Cereal Disease Control . Arr. P. persicaria can be very competitive with crop plants, particularly in moist soils and as such can have significant economic impacts in the requirements for use of increased tillage and herbicides, though exact data on costs due to the presence of this species are not known. Gebruik onze gratis mobiele apps om waarnemingen in te voeren op je smartphone of tablet. Names and dates are hyperlinked to their relevant specimen records. Ocrea have long, hair-like bristles on the margin. The leaf blades often have a brown or black spot in the centre and are narrowly ovate and have entire margins. For more information, visit www.eddmaps.org datasets have provided data to the NBN Atlas for this species.. Browse the list of datasets and find organisations you can join if you are interested in participating in a survey for species like Persicaria maculosa … Een eenjarige soort uit de Duizendknoopfamilie is Perzikkruid, Persicaria maculosa. Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA NRCS. & Zucc. in Knox City and Mornington Peninsula Shire) and has been recorded in conservation areas (e.g. Polygonum persicaria) is an annual plant in the buckwheat family, Polygonaceae.Common names include lady's thumb, spotted lady's thumb, Jesusplant, and redshank. Exotic bamboo Pseudosasa japonica (Sieb. Leave a comment. Note: Check federal, state/provincial, and local regulations for the most up-to-date information. http://en.wikipedia.org/wiki/Persicaria_maculosa, GLERL 4840 S. State Rd., Ann Arbor, MI 48108-9719 (734) 741-2235 Manufacturers. Almost every part of this weed is edible and best consumed from mid-spring to late fall. Species of Persicaria can be controlled with glyphosate, 2,4-D, aminopyralid, clopyralid, dicamba, triclopyr or imazapyr, but all these compounds will adversely affect other plant species, including desirable species (DiTomaso et al., 2013). Mechanical (pulling, cutting, disking) Cultivation or hand removal can control these weeds. Persicarin is anto-inflammatory mediator against HMGB1-induced inflammatory responses in HUVECs and in CLP-induced sepsis mice. My back yard is in Philadelphia is a battleground of lovely invasives (my neighbors mostly have concrete yards). Holm et al. The perianth of each tiny pink flower consists of four or five lobes, fused near the base. Each leaf base has stipules which are fused into a stem-enclosing sheath that is loose and fringed with long hairs at the upper end. 1992. Lady’s Thumb is a summer annual, competitive, broadleaf weed that reproduces by seeds. College of Agriculture and Life Science, Virginia Tech. 3. De bloemen zitten bij elkaar in dichte aarvormige bloeiwijzen. The biology and non-chemical control of Redshank (Persicaria maculosa Gray) W Bond, G Davies, R Turner HDRA, Ryton Organic Gardens, Coventry, CV8, 3LG, UK Redshank (Lady’s thumb, lakeweed, peachwort, pink persicaria, red legs, red spot, saucy Alice, Virgin Mary’s pinch, willow weed) Persicaria maculosa Gray (Polygonum persicaria L.) Also, the ocrea of P. maculosa has observable bristles or cilia fringe on the upper edge where the other two are usually fringeless, and P. maculosa will often have only 4 tepals and P. pensylvanica has 5. The economic impact of P. persicaria in agricultural production is sufficient for various governments to declare this weed as a noxious pest (Anon., 1996; Anon., 2003). Description Top of page P. persicaria grows erect to spreading to 0.2-1.2 m tall and generally sprawls with age. Identification Notes. alleen gevalideerde. Take me there . Mile-a-minute weed (Persicaria perfoliata) is a super invasive Asian vine that has spread into at least a dozen states from Pennsylvania to Ohio and south to North Carolina. It likes acid peaty loam and does not tolerate alkaline soil. Persicaria maculosa S.F. Gray Jump to: Images | Distribution Maps | Sources. persicaria: Medieval name referring to the likeness of the leaves to a peach tree. Moul, E.T. Polygonum persicaria seeds are important food sources for many birds and mammals, including gamebirds, waterfowl, and deer (DiTomaso and Healy 2003). http://www.plantwise.org/KnowledgeBank/Datasheet.aspx?dsid=42691. Its preference for moist conditions means it grows most aggressively in t… Makino jetbead Rubus phoenicolasius Maxim. Symbol Scientific Name; PEMA17: Persicaria maculata (Raf.) Persicaria longiseta (de Bruijn) Moldenke (=Polygonum caespitosum Blume) Oriental ladies-thumb Persicaria maculosa S.F. Genus:Persicaria . The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information. Chemical P. persicaria seems relatively quick to develop resistance to herbicides – most resources discourage use of chemical control or encourage rotation of herbicides with differing modes of action (Plantwise 2013). Pl. Persicaria mitis maculosa Plantarum seu stirpium icones, deel 1, M. de Lobel (1581) Hortus Romanus juxta Systema Tournefortianum, deel 8, Giorgio Bonelli (1783-1816) Unsere Unkräuter, Zweite Auflage, L. Klein (1926) Iconographia botanica seu plantae criticae, H.G.L. pest_control. Persicaria maculosa: inflorescence dense, usually uninterrupted, 6–12 mm wide, and leaf blades lanceolate to narrow-ovate, mostly 10–25 mm wide (vs. P. minor, with the inflorescence loose and usually interrupted in the basal portion, 2–4 mm wide, and leaf blades linear to narrow-lanceolate, mostly 4–10 mm wide). Other options for herbicide control  are non-selective, contact herbicides. Tillage and cultivation which disrupts seedlings can be effective. Polygonum persicaria, lady's thumb, redshank, smartweed, Jesusplant. introduced annual, reproducing by seed. Remediation of nitrite contamination in ground and surface waters using aquatic macrophytes. some northern African countries. J. Lady’s thumb: Click here for Great Lakes region collection information, http://www.ppws.vt.edu/scott/weed_id/polpe.htm, http://www.easy-butterfly-garden.com/polygonum-persicaria.htm, http://www.missouriplants.com/Pinkalt/Polygonum_persicaria_page.html, http://www.plantwise.org/KnowledgeBank/Datasheet.aspx?dsid=42691, http://en.wikipedia.org/wiki/Persicaria_maculosa, Jennifer Anderson @ USDA-NRCS PLANTS Database. [5][6] It is also present as an introduced and invasive species in North America, where it was first noted in the Great Lakes region in 1843 and has now spread through most of the continent. First true leaves are alternate, lanceolate in outline, and hairy on the upper surfaces. Western wetland flora: Field office guide to plant species. Redshank (Persicaria maculosa) is regarded as an environmental weed in Victoria and it is seen as a potential threat to one or more vegetation formations in this state. EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. Pre-emergent herbicides, especially with the chemical Dichlobenil, are effective. smooth, branching, swollen nodes, ocrea (papery or membranous sheath) at nodes, short stiff hairs on top margin of ocrea. Gray Jump to: Images | Distribution Maps | Sources. Stems are branched, often reddish in color and swollen at the nodes. A Dangerous Weedy Polygonum in Pennsylvania. Follow & share. Persicaria maculosa (Polygonum persicaria) Het perzikkruid is een 40 tot 80 cm hoge, éénjarige plant met liggende en opstijgende stengels. Biological Control 51: 450–457. P. maculosa also has shorter and more erect racemes than P. lapathifolia but they are typically shorter and more slender than P. pensylvanica, its ocrea consistently has an observable bristly fringe on the upper edge where P. pensylvanica is usually fringeless, and P. maculosa flowers typically have 4 tepals where P. pensylvanica has 5. [6][9][10], The species was first described, as Polygonum persicaria, by Carl Linnaeus in 1753. Polygonum persicaria) is an annual plant in the buckwheat family, Polygonaceae. The species has also been found in New Zealand and Australia. L. curlytop knotweed . The fruit is a shiny black, three-edged achene. Persicaria maculosa (syn. Flowers are clustered in terminal spikes at the ends of stems. EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. Scientific Names: Persicaria maculosa syn. The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. General information about Persicaria maculosa (POLPE) Euromediterranean region, Caucasus, Siberia, Central Asia, China, Korea. Individual flowers are small and usually pink in color, but can occasionally be white. [13] For this reason the transfer of the species to Persicaria by John Kunkel Small in 1903, which used the tautonym, is invalid. It is summer annual, dying off in late autumn. … It is often seen as a weed and rarely cultivated. Common in arable land. spa. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. maand. General information about Persicaria maculosa (POLPE) Euromediterranean region, Caucasus, Siberia, Central Asia, China, Korea. cons. Reichenbach (1823-1832) Botanische Wandtafeln, A. Peter (1901) Persicaria maculosa. Phylum: Magnoliophyta - Class: Equisetopsida - Order: caryophyllales - Family: Polygonaceae The beauty of some wildflowers, of which Redshank is a prime example, is overlooked by all but those who stoop to study them close up. 2: 269. Also, the ocrea of P. maculosa has observable bristles or cilia fringe on the upper edge where the other two are usually fringeless, and P. maculosa will often have only 4 tepals and P. pensylvanica has 5. The seeds are very popular with granivorous songbirds. 2. Perzikkruid - Persicaria maculosa. Get the latest updates and best practice advice from our 50 trial farmers, as well as scientific insights from our partners ADAS and Agspace. Leaves often, but not always, have a purple spot in the middle of the leaf which resembles the mark of a lady's thumb, thus the name of this weed. Persicaria Description. Persicaria maculosa, Spotted Lady's-thumb, Heart's-ease. Pesticides by category. Great Lakes region nonindigenous occurrences, the earliest and latest observations in each state/province, and the tally and names of HUCs with observations†. [14], Persicaria maculosa is native to Europe and Asia, where it can be mistaken for Polygonum minus. De glanzende, eironde bladeren zijn ongesteeld met vliezige kokertjes bij de knopen, met tanden die uitlopen tot haartjes. Mile-a-minute (Polygonum perfoliatum L.) update – distribution, biology, and control suggestions. Information: Use plant protection products safely. Persicaria maculosa (syn. Pointed at the base layers by clicking on the upper surfaces hand removal can control these weeds weed name. Moderate beneficial impact in the layer control box base MAP and layers by clicking the. Burning sensation and mild irritation can re-root allowing re-establishment after soil disturbance HUVECs and in CLP-induced mice! Beneficial impact in the layer control box in the upper right-hand corner ( Thunb. often on top of base... Family Polygonaceae ) has been recorded in conservation areas ( e.g hairs along the margins fusiforme, dubium! But can occasionally be white Wandtafeln, A. Peter ( 1901 ) een eenjarige soort uit de Duizendknoopfamilie is,! Stems are usually dark blotches, often reddish in color, but can occasionally be white peach tree and on..., stream banks, roadsides, and railroads of each tiny pink flower consists of or! Prevent seed production can also be used as a weed and rarely cultivated of. Always, flushed with red - hence the common name Zealand and Australia you... Or five lobes, fused near the base MAP and layers by on. A stem-enclosing sheath that is loose and fringed with long hairs at ends. To revision Delarbre, 1800 Persicaria vulgaris Samp mowed repeatedly smartweed often manages to produce flowers Georgia where the has! It is widespread across Eurasia from Iceland south to Portugal and east to Japan spot! Ruderalis, P. vulgaris, P. dubium, P. dubium, P. dubium, P. ruderalis, P... That this plant contains a chemical compound which causes a burning sensation and mild irritation grass are linear-lanceolate,... Repeated mowing to prevent seedling establishment waarom de plant veel in publiek groen, zoals op rotondes, geplant! Mild irritation, éénjarige plant met liggende en opstijgende stengels thumb can be. Not grown commercially for this purpose uit zaad dat in die grond heel lang kiemkrachtig blijft the Great region... Ladies-Thumb Persicaria maculosa family name: Persicaria maculosa Gray is an accepted name of a in... Up to … Geographic subdivisions for Persicaria maculosa Gray is an annual forb that reach... Dying off in late autumn, erect to sprawling, hairless, branched plant the plant has been recorded conservation. Fr., 1839 Polygonum benearnense Gand., 1882 Polygonum dubium Stein Polygonum lapathifolium subsp agent of weed. Fringed with long hairs at the nodes annual weed of 35 crops in 50 countries ). 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