diarrhoeah and infectious diseases, and the leaves and young shoots can be eaten in salads. 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 fused near to the base. Water Pepper, Alpine Bistort, Amphibious Bistort, Asiatic Dock, Bistort, Black Bindweed, Broad-leaved Dock, Buckwheat, Common Sorrel, Curled Dock, Japanese Knotweed, Knotgrass, Koenigia divaricata, Monk's Rhubarb, Mountain Sorrel, Northern Dock, Pale Persicaria, Scottish Dock, Sheep's Sorrel, Water Dock, Water Pepper. Each tiny flower has no petals but has 4–6 petal … A late summer flowerer it is usually the pink colour in the left but the unusual red form shwon was in every other respect a normal P. maculosa . Redshank is believed to have arrived in Finland in ancient times (an archeophyte). We hope that you have found this information helpful. Approximately 120 species in Finland are archeophytes. Wiry branched stems with 'knots' at leaf joints which are swollen and reddish with a covering of a silvery scale. The website also provides access to a database and images of plants photos and herbarium specimens found at participating herbaria. 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 … More often overlooked as a weed growing close to water and on arable land, this is an annual which is identified mainly by the dark blotch on its leaves. The stems develop a reddish … The leaves are rich in vitamin C. Persicaria, the generic name, relates the shape of leaves of this group of plants to those of a peach tree. Redshank exhibits considerable phenotypic plasticity and genotypic variation. Amphibious Bistort, Stem glabrous, slightly swollen at joints. The fringes on the P. persicaria ocrea are short, less than half the length of the membraneous ocrea. The Redshank (Persicaria maculosa, formerly Polygonum persicaria) is a perennial plant from the Knotweed family Polygonaceae.It is also called Persicaria, Redleg, Lady's-thumb, [1] Spotted Ladysthumb, Gambetta, and Adam's Plaster in Newfoundland. → Distribution map A neophyte is a species that has arrived after the beginning of the 17th century. Common names include lady's thumb, spotted lady's thumb, Jesusplant, and redshank. Common throughout Britain and Ireland, Redshank occurs throughout temperate parts of Europe and Asia. Many neophytes, including lupin, hogweeds and Himalayan balsam, are regarded as “harmful” in Finland due to the way that they spread aggressively to unsuitable areas. It is summer … Genus:Persicaria . These are both alien species. Erect–ascending, limp. Western … Jennifer Anderson @ USDA-NRCS PLANTS Database. Synonyms and Other Names: Polygonum persicaria, lady's thumb, redshank, smartweed, Jesusplant. Click on any image to load an enlargement. Leaf blade short-stalked–stalkless, lanceolate–narrowly elliptic, 5–10 cm (0.2–0.4 in. Visit us. It is an introduced species in North America. Persicaria maculosa var. 1. Pale Persicaria, Ochrea margin with long hairs. Redshank has been used as a medicinal herb to treat e.g. An alternative scientific name is Polygonum persicaria, while 'persicaria' is also used as another alternative common name. Redshank; Redshank [Persicaria maculosa] Print. Lady's thumb or redleg (Persicaria maculosa), an herb in the buckwheat family. Persicaria maculosa Redshank CCC DD N This is a very common weed which is found in wet places, fields, waste ground and even growing out of the crack between pavement and wall. Persicaria maculosa var. Polygonum agreste Fr., 1839 Polygonum benearnense Gand., 1882 Polygonum dubium Stein Polygonum lapathifolium subsp. The Alabama Plant Atlas is a source of data for the distribution of plants within the state as well as taxonomic, conservation, invasive, and wetland information for each species. The flowering and the harvesting take place from July to November and the fruiting happens from August to October. Persicaria bistorta (bistort, common bistort), 'Superba' Redshank Persicaria maculosa. redshank (plural redshanks) Either of two species of Old World wading bird in the genus Tringa that have long red legs. Generally considered a nuisance weed of cultivated land, Redshank has been used as a source of a yellowish dye. Information: Use plant protection products safely. Maculosa refers to dark blotches … e.g by boat or with soldiers, before the beginning of the 17th century. Redshank (Persicaria maculosa, formerly known as Polygonum persicaria) is one of those plants that are not really known as edible. Pale Persicaria… Flower: Regular (actinomorphic)–campanulate (bell-shaped), approx. Inflorescence a dense spike. It is from the reddish colour of the stems, most particularly immediately above branching nodes, that Persicaria maculosagets its common name Redshank. Archeophytes in Finland are classified as those species which have arrived in the country with people. P. persicaria has a distinctly fringed ocrea, distinguishing it from other Polygonum species (Uva et al., 1997). © Copyright: Images: Jouko Lehmuskallio. Stem glabrous, slightly swollen at joints. Standing up to 80 cm tall, this plant bears its bright pink, rarely white, flowers in cylindrical, densely-crowded spikes on reddish stems. Leaves: Alternate. As in this example, there are usually dark blotches, often shaped rather like arrowheads, on the leaves of this annual plant. The specific epithet maculosameans spotted; it refers to the dark blotches on leaves of Redshank. Filters: Show All Hide Herbivores Hide Parasites Hide Mycorrhizae Hide Saprobes. Fruit: Shiny black, 2–3 mm (0.08–0.12 in.) The leavesare lance-shaped with a shortstalk and usually have a dark blotch in the centre, which is why it is sometimes called Ladysthumb, particularly in North America, as it is said to resemble a thumb-print. Polygonum persicaria) is an annual plant in the knotweed family, Polygonaceae. Redshank looks a lot like pale persicaria (P. lapathifolia), whose flowers are often greenish, or less commonly reddish. Height: 10–60 cm (4–25 in.). If so we are sure you would find our books Wonderful Wildflowers of Wales, vols 1 to 4, by Sue Parker and Pat O'Reilly very useful too. Persicaria, the generic name, relates the shape of leaves of this group of plants to those of a peach tree. Redshank was regarded as nutritious and has been fed to horses and cattle as green food. It is included in an evolving list of plants carefully researched and chosen by RHS experts. Erect–ascending, limp. Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA NRCS. Back to Main Page: Family Index: Interactions where Persicaria maculosa is the victim or passive partner (and generally loses out from the process) . In Britain and Ireland Redshank blooms from June through to October. Terms of use - Privacy policy - Disable cookies - External links policy. 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. maculosum (Gray) Dyer & Trimen, 1871 Polygonum leucanthemum Gand., 1882 Polygonum maculatum Dulac, 1867 Polygonum persicaria … The leaves and young shoots are cooked eaten as leaf vegetables in some countries. Perianth with 5 lobes, pink–red (occasionally white), fused from base to half-way. For product information including warning phrases and symbols refer to the products section. All rights reserved. It is from the reddish colour of the stems, most particularly immediately above branching nodes, that Persicaria maculosa gets its common name Redshank. Species Profile - Persicaria maculosa. Habitat: Yards, gardens, fields, waste ground, ditches, soil heaps. It can form hybrids with pale persicaria (P. lapathifolia). Common Name: Spotted ladysthumb. The surest way to tell the species apart is to study their stipule-sheaths, which are long-haired on redshank and short-haired on pale persicaria. As he was going he turned round and said to me, pointing at redshank (Persicaria maculosa) with a smile, ‘Do you know what we used to call that one then?’ I said no, and he replied ‘Arsewipe’ (because of the brown blotch on the leaf). Name also: Redleg, Spotted Lady’s-thumb, Spotted Ladysthumb, (. Identify species based on their characteristics! The stems are sometimes, but far from always, flushed with red - hence the common name. Roots are typically a … Redshank, persicaria maculosa (polygonum pericaria), wildflower, Fleet Valley, Dumfries & Galloway, Scotland Early Autumn flowers of the hardy perennial Persicaria amplexicaulis 'Taurus' Persicaria milletii close up of flower. Basally (to half-way) united styles 2. argentea Gray Persicaria mitis Delarbre, 1800 Persicaria vulgaris Samp. The stems are glabrous, branching at base, erect, herbaceous, typically reddish at nodes. According to the time they arrived, they are native, archeophytes or neophytes. long. Native to Europe, it is an invasive species in the Great Lakes region … The leaves vary in shape and size and the flowers may be red, pink or white. Growing in tightly-packed elongated ellipsoidal groups, the tiny flowers of Persicaria maculosa are pale pink, but while in bud they are a much deeper pink. The Cherokee, Chippewa, and Iroquois prepared simple or compound decoctions of Persicaria maculosa, which they used as dermatological, urinary, gastrointestinal, and veterinary aids, for heart medicine, and as an analgesic (D. E. Moerman 1998). amblyophylla is currently the only accepted variety of P. maculosa listed by Plants of the World Online and are native of Japan. Latin Name: Persicaria maculosa Family: Polygonaceae Height: 25 - 75 cm Season: Jun - Oct A member of the Dock family, and a relation of Amphibious Bistort (Persicaria amphibia), Redshank is a fairly common sight in arable fields, waysides, marshland and waste ground around Scotland. 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