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. Ochrea margin with long hairs. Click on any image to load an enlargement. It is native to Eurasia and present as an introduced and invasive species in North America, where it was first noted in the Great Lakes … The specific epithet maculosameans spotted; it refers to the dark blotches on leaves of Redshank. The leaves and young shoots are cooked eaten as leaf vegetables in some countries. 1. POWO list 19 synonyms of the species including Polygonum persicaria which is one of … It is included in an evolving list of plants carefully researched and chosen by RHS experts. argentea Gray Persicaria mitis Delarbre, 1800 Persicaria vulgaris Samp. e.g by boat or with soldiers, before the beginning of the 17th century. Leaves: Alternate. The following relationships have been collated from the published literature (see 'References'). Information: Use plant protection products safely. Roots are typically a … Polygonum agreste Fr., 1839 Polygonum benearnense Gand., 1882 Polygonum dubium Stein Polygonum lapathifolium subsp. Description: Persicaria maculosa (also known as Polygonum persicaria, lady’s thumb, spotted lady’s thumb, Jesusplant, and redshank, Chinese Pinyin: Ma Liao, Simplified Chinese: 马蓼, 大蓼, 墨记草, 春蓼), is a species of annual herbaceous plant in genus Persicaria (Polygonaceae family). Leaves lanceolate, tapered at the base, often with a large blackish blotch. The stems are sometimes, but far from always, flushed with red - hence the common name. Persicaria maculosa var. 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 in this example, there are usually dark blotches, often shaped rather like arrowheads, on the leaves of this annual plant. These are both alien species. redshank. 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. Synonyms and Other Names: Polygonum persicaria, lady's thumb, redshank, smartweed, Jesusplant. Height: 10–60 cm (4–25 in.). Inflorescence a dense spike. This plant will provide nectar and pollen for bees and the many other types of pollinating insects. Redshank exhibits considerable phenotypic plasticity and genotypic variation. The website also provides access to a database and images of plants photos and herbarium specimens found at participating herbaria. Standing up to 80 cm tall, this plant bears its bright pink, rarely white, flowers in cylindrical, densely-crowded spikes on reddish stems. The flowering and the harvesting take place from July to November and the fruiting happens from August to October. The leaves are rich in vitamin C. Plants annual, (0.5-)1-7(-13) dm; roots also often arising from proximal nodes; rhizomes and stolons absent.Stems procumbent, decumbent, ascending, or erect, simple or branched, without obvious ribs, glabrous or appressed-pubescent.Leaves: ocrea light brown, cylindric, 4-10(-15) mm, chartaceous, base inflated, margins … Wiry branched stems with 'knots' at leaf joints which are swollen and reddish with a covering of a silvery scale. Fruit: Shiny black, 2–3 mm (0.08–0.12 in.) Persicaria maculosa var. Pale Persicaria… Within the perianth are six white stamens, two fused carpels and two styles. Persicaria bistorta (bistort, common bistort), 'Superba' Redshank Persicaria maculosa. 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. Spotted Lady's-thumb, Redshank: Genus: Persicaria: Family: Polygonaceae (Buckwheat) Life cycle: annual: Origin: Europe: Status: Weedy; Habitat: part shade, sun; moist disturbed soil; shorelines, ditches, waste places, agricultural fields: Bloom season: June - September: Plant height: 12 to 30 inches: Wetland Indicator Status: … 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. Filters: Show All Hide Herbivores Hide Parasites Hide Mycorrhizae Hide Saprobes. 1992. Redshank (Persicaria maculosa) (4860384841).jpg 1,732 × 2,317; 703 KB Redshank (Persicaria maculosa) - geograph.org.uk - 1144064.jpg 640 × 480; 91 KB Renouée persica(0)a.jpg 1,440 × 2,160; 324 KB Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually. It is an introduced species in North America. Pistil of two fused carpels. Persicaria maculosa is an annual plant growing up to 80cm, with lanceolate, wide in the middle, dark-spotted, green leaves and small, pink or white flowers in vertical, dense inflorescences. It is summer … General Info 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). 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. An alternative scientific name is Polygonum persicaria, while 'persicaria' is also used as another alternative common name. Basally (to half-way) united styles 2. diarrhoeah and infectious diseases, and the leaves and young shoots can be eaten in salads. 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. Interactions where Persicaria maculosa is the victim or passive partner (and generally loses out from the process) . A neophyte is a species that has arrived after the beginning of the 17th century. 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. Stem glabrous, slightly swollen at joints. Terms of use - Privacy policy - Disable cookies - External links policy. ), with entire margins, glabrous, surface with black blotch. Persicaria, the generic name, relates the shape of leaves of this group of plants to those of a peach tree. long. Western … You will find plenty of Redshank in marshy areas, although it is also quite commonly seen in dryareas where the ground has been disturbed - building sites, for example. Common throughout Britain and Ireland, Redshank occurs throughout temperate parts of Europe and Asia. Stem glabrous, slightly swollen at joints. To Main Page: family Index: species Profile - persicaria maculosa purple horn moss! Is a species that has arrived after the beginning of the 17th century black. 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