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'''Spotted lady's thumb''' or '''Persicaria maculosa''' (syn. Polygonum persicaria) is an annual plant in the buckwheat family, Polygonaceae. Common names include lady's thumb, spotted lady's thumb, Jesusplant, and redshank.<ref name="int"/> It is widespread across Eurasia from Iceland south to Portugal and east to Japan.<ref name="int2"/> 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.

== Description Uses== Persicaria maculosa is an annual herb up to 80 cm (31 in) tall{{Uses|Stomach pains}}, {{Uses|Gravel pains}}, {{Uses|Rheumatism}}, {{Uses|Poison ivy rash}}, {{Uses|colds}}, with an erect rather floppy stem with swollen joints. The leaves are alternate and almost stalkless. The leaf blades often have a brown or black spot in the centre and are narrowly ovate and have entire margins. 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. The inflorescence is a dense spike. The perianth of each tiny pink flower consists of four or five lobes{{Uses|coughs}}, fused near the base. There are six stamens{{Uses|Pimples}}, two fused carpels and two styles. The fruit is a shiny black{{Uses|Diarrhea}}, three-edged achene. This plant flowers from July to September in the temperate Northern Hemisphere.<ref name="int2"/><ref name="des"/>{{Uses|Sore throats}}

== Uses Parts Used== *Persicaria maculosa contains persicarin and tannins. In medicine{{Parts Used|Leaves}}, redshank is used against diarrhoea and infections. *The leaves and young shoots may be eaten as a palatable and nutritious leaf vegetable.*A yellow dye can be produced from this plant with alum used as a mordant{{Parts Used|Seeds}}.

==Common Chemical Composition==Phenolics, peptides, terpenoids, and sterols<ref name=="chemical composition"/>

* '''English''==Common names=={{Common names|kn=|ml=|sa=|ta=|te=|hi=|en=Redshank, Lady' s- spotted lady's thumb}}

== References Properties==Reference: Dravya - Substance, Rasa - Taste, Guna - Qualities, Veerya - Potency, Vipaka - Post-digesion effect, Karma - Pharmacological activity, Prabhava - Therepeutics.===Dravya===

===Rasa===Tikta (Bitter), Kashaya (Astringent)===Guna===Laghu (Light), Ruksha (Dry), Tikshna (Sharp)===Veerya===Ushna (Hot)===Vipaka===Katu (Pungent)===Karma===Kapha, Vata===Prabhava=== ==Habit=={{Habit|Herb}} ==Identification=====Leaf==={{Leaf|Simple|alternate|Narrowly lance-shaped, about 6x longer than wide, with pointed tips}}<ref name="Leaf"/> ===Flower==={{Flower|Unisexual|1/8 inch long|rose-pink|4 to 8|The flowers are 5-parted, with a perianth that may be greenish-white at the base to rose at the tip}} ===Fruit==={{Fruit|General|7–10 mm|Each flower is replaced by a seed that is ovoid|slightly 3-angled, black, and shiny|many}} ===Other features=== ==List of Ayurvedic medicine in which the herb is used==* [[Vishatinduka Taila]] as ''root juice extract'' ==Where to get the saplings====Mode of Propagation=={{Propagation|Seeds}}, {{Propagation|Cuttings}}. ==How to plant/cultivate==Collecting and transplanting from the wild is strongly discouraged, though may be performed from your own property or that of someone you know (with permission). When transplanting, include as much of the roots and surrounding soil as possible. Since it’s rather difficult to successfully transplant wild lady slipper orchids, it’s better to obtain them from commercial growers instead. Read more at Gardening Know How: Lady Slipper Care: How To Grow Lady Slipper Orchids https://www.gardeningknowhow.com/ornamental/flowers/orchids/lady-slipper-wildflower.htm<ref name="How to plant/cultivate"/> ==Commonly seen growing in areas=={{Commonly seen|Damp shady places}}, {{Commonly seen|cultivated land}}, {{Commonly seen|Borders of forests and fields}}. ==Photo Gallery==<gallery class="left" caption="" widths="140px" heights="140px">File:Polygonum persicaria_bgiu.jpgFile:Polygonum persicaria.jpgFile:Persicaria maculosa.jpegFile:PersicariaMaculosa001.JPGFile:Persicaria maculosa_habitus.jpegFile:Persicaria maculosa 001.JPGFile:Persicaria maculosa 002.JPG</gallery> ==References== <references><ref name="intchemical composition">[https://npgswebwww.ars-grinncbi.nlm.nih.gov/gringlobalpubmed/taxonomydetail.aspx?409768 Persicaria maculosa26916522 "chemical constituents"]</ref> <ref name="int2Leaf">[http://www.eflorasfriendsofthewildflowergarden.org/florataxonpages/plants/smartweed_ladysthumb.aspx?flora_id=2&taxon_id=220010832 Flora of China, Polygonum persicaria Linnaeus, 1753. 蓼 liaohtml "plant decsription"]</ref>  <ref name="desHow to plant/cultivate">[httphttps://www.luontoporttigardeningknowhow.com/suomiornamental/enflowers/kukkakasvitorchids/redshank lady-slipper-wildflower.htm "Redshank: Persicaria maculosaHow to Grow Spotted Lady plant"]</ref>

== External Links == * [https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/spotted-lady-beetle Persicaria maculosa on science direct]*[httpshttp://enwww.wikipediabsienvis.nic.in/Database/bsi_3946.aspx Persicaria maculosa on ENVIS Centre on Floral Diversity]* [http://eol.org/wikipages/1174745/Persicaria_maculosa details Persicaria maculosa - Wikipediaon encyclopedea of life]* [https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.13749 Macroevolution of leaf defenses and secondary metabolites across the genus Helianthus]