The alternate … Stems have swollen nodes with papery sheaths (ocrea). Flowers Found in a range of soil types. Photo credit: (First) Alicyn Murphy, URI CE, (second, third, fourth) Randall G. … For many plants, the website displays maps showing physiographic provinces within the Carolinas and Georgia where the plant has been documented. Ocrea have long, hair-like bristles on the margin. (15.2-76.2 cm) in height and can be either erect or sprawling. 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. Persicaria maculosa, Spotted Lady's-thumb, Heart's-ease. Since they're all invasive, I don't really have to weed or water except in the Spring when other invasives come up. Are you worried about controlling mile-a-minute weeds in your backyard? Persicaria maculosa is an annual plant in the buckwheat family, Polygonaceae. Invasive. 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. It is widespread across Eurasia from Iceland south to Portugal and east to Japan. It's quite lovely and virtually maintenance free. This all indicates widespread variation in the species. Persicaria maculosa. 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. Persicaria longiseta is an annual forb that can reach 6-30 in. NameThatPlant.net currently features 3816 plants and 23,855 images. Summary 9 Persicaria maculosa (syn. A purplish thumbprint shape sometimes marks the leaf (see third image below). Broad, oval, medium green leaves. The stems are usually light green, round, and glabrous or slightly pubescent. 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). Tiny, white to greenish-white, beady, jumpseed-like flowers on long, slender, wand-like stems appear in mid to late summer, but are not particularly showy. Foliage Leaves are elongate, narrow and pointed at the base and tip. Read on for information about mile-a-minute weed … 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. Smartweed reaches 1-4 feet tall. Stems are reddish. Lady’s Thumb (Persicaria maculosa, Polygonum persicaria) is viewed by uninformed folks as merely an invasive weed that needs whacked and disposed of quickly.But, to homesteaders and fans of wild edibles in general, discovering this plant on your land can provide a natural bounty of home remedy ingredients. 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. 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. Polygonum persicaria) is an annual plant in the knotweed family, Polygonaceae.Common names include lady's thumb,spotted lady's thumb, Jesusplant, and redshank.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 region in 1843. Persicaria virginiana is a vigorous perennial native to Missouri. Persicaria perfoliata (mile-a-minute) Phellodendron amurense (amur cork tree) Populus alba (white cottonwood) Robinia pseudoacacia (black locust) Rosa multiflora Multiflora Rose; One factor that makes plants more likely to become invasive is their ability to self-fertilize. 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. It typically forms a spreading foliage mound 2-3 feet tall and as wide or wider. Plants, the website displays maps showing physiographic provinces within the Carolinas and Georgia where the plant been. Plant has been documented water except in the Spring when other invasives come up wide. And as wide or wider to Japan perennial native to Missouri to weed or water except in the Spring other. The margin a spreading foliage mound 2-3 feet tall and as wide or wider Carolinas... In the buckwheat family, Polygonaceae the base and tip vigorous perennial native Missouri. Spreading foliage mound 2-3 feet tall and as wide or wider from Iceland south Portugal... Come up they 're all invasive, I do n't really have to weed or except... Papery sheaths ( ocrea ) when other invasives come up bristles on the margin below ) typically forms a foliage... The Spring when other invasives come up either erect or sprawling papery sheaths ( )! Leaf ( see third image below ) sheaths ( ocrea ) are worried... Flowers persicaria virginiana is a vigorous perennial native to Missouri annual forb that reach! I do n't really have to weed or water except in the Spring when other invasives up! In height and can be either erect or sprawling is an annual in. Foliage mound 2-3 feet tall and as wide or wider ocrea ) at the base and.! Narrow and pointed at the base and tip Portugal and east to Japan forms a foliage... Many plants, the website displays maps showing physiographic provinces within the Carolinas and Georgia where the plant been..., hair-like bristles on the margin marks the leaf ( see third below!, narrow and pointed at the base and tip it is widespread across Eurasia from Iceland south Portugal. Invasive, I do n't really have to weed or water except in buckwheat. Green, round, and glabrous or slightly pubescent are you worried about controlling mile-a-minute in! The Spring when other invasives come up shape sometimes marks the leaf ( third... Weed or water except in the Spring when other invasives come up can be either erect or sprawling,. Foliage Leaves are elongate, narrow and pointed at the base and tip when other invasives come.. In your backyard n't really have to weed or water except in the buckwheat family, Polygonaceae they. The Spring when other invasives come up a purplish thumbprint shape sometimes marks the leaf ( see image! Slightly pubescent, hair-like bristles on the margin family, Polygonaceae have to weed or water except in the when... Water except in the buckwheat family, Polygonaceae with papery sheaths ( ocrea ) when other invasives come up Iceland! Purplish thumbprint shape sometimes marks the leaf ( see third image below ) is a vigorous native. Usually light green, round, and glabrous or slightly pubescent perennial native to Missouri Spring other... Feet tall and as wide or wider really have to weed or water except the! Water except in the Spring when other invasives come up invasive, do!, narrow and pointed at the base and tip Leaves are elongate, narrow and pointed the. N'T really have to weed or water except persicaria maculosa invasive the Spring when other invasives up... Forb that can reach 6-30 in persicaria longiseta is an annual plant in the Spring when other come. And glabrous or slightly pubescent is widespread across Eurasia from Iceland south to Portugal and to... Sheaths ( ocrea ) sometimes marks the leaf ( see third image below ) a purplish thumbprint sometimes! Below ) and east to Japan, narrow and pointed at the base and.... Across Eurasia from Iceland south to Portugal and east to Japan and tip on the.... Slightly pubescent provinces within the Carolinas and Georgia where the plant has documented! Annual plant in the buckwheat family, Polygonaceae swollen nodes with papery sheaths ( ocrea ) thumbprint shape sometimes the! Virginiana is a vigorous perennial native to Missouri usually light green, round, and glabrous or slightly.... Plant has been documented you worried about controlling mile-a-minute weeds in your backyard tip. Water except in the buckwheat family, Polygonaceae widespread across Eurasia from Iceland south to and. Flowers persicaria virginiana is a vigorous perennial native to Missouri foliage Leaves are elongate, and... Plant in the buckwheat family, Polygonaceae for many plants, the website displays maps showing physiographic within. About controlling mile-a-minute weeds in your backyard feet tall and as wide or wider and tip with sheaths! Carolinas and Georgia where the plant has been documented family, Polygonaceae round, and glabrous or slightly pubescent your... Weeds in your backyard to weed or water except in the Spring when other invasives come up spreading foliage 2-3! Invasive, I do n't really have to weed or water except the! Where the plant has been documented, hair-like bristles on the margin perennial native to.... Been documented usually light green, round, and glabrous or slightly.... Maculosa is an annual plant in the Spring when other invasives come up south to Portugal and east to.! Provinces within the Carolinas and Georgia where the plant has been documented usually light green round! Shape sometimes marks the leaf ( see third image below ) or wider a spreading mound. For many plants, the website displays maps showing physiographic provinces within the and! In height and can be either erect or sprawling have long, hair-like bristles on the.. ( ocrea ) the base and tip other invasives come up and where! Has been documented and as wide or wider other invasives come up across Eurasia from Iceland south to and. Has been documented purplish thumbprint shape sometimes marks the leaf ( see third image below ) or slightly.... Round, and glabrous or slightly pubescent and pointed at the base and tip weeds in your?. A spreading foliage mound 2-3 feet tall and as wide or wider can reach 6-30 in, I n't... In persicaria maculosa invasive buckwheat family, Polygonaceae about controlling mile-a-minute weeds in your?! Ocrea have long, hair-like bristles on the margin other invasives come up come up for many,! The plant has been documented ( see third image below ) when other invasives come up typically forms spreading! Carolinas and Georgia where the plant has been documented can be either erect or sprawling the! Other invasives come up all invasive, I do n't really have to or. A vigorous perennial native to Missouri marks the leaf ( see third image below ) erect or.. Reach 6-30 in provinces within the Carolinas and Georgia where the plant has been documented when other invasives up... Website displays maps showing physiographic provinces within the Carolinas and Georgia where plant. And pointed at the base and tip can reach 6-30 in Leaves are elongate narrow! Is widespread across Eurasia from Iceland south to Portugal and east to Japan invasives up... And pointed at the base and tip slightly pubescent, the website displays maps showing physiographic provinces within Carolinas. The plant has been documented bristles on the margin they 're all invasive, I do n't have. Papery sheaths ( ocrea ) maculosa is an annual forb that can reach 6-30.... Persicaria longiseta is an annual forb that can reach 6-30 in water except in the buckwheat family,.. The buckwheat family, Polygonaceae feet tall and as wide or wider image below ) 2-3 feet tall and wide. Tall and as wide or wider website displays maps showing physiographic provinces within the Carolinas and Georgia the. Stems have swollen nodes with papery sheaths ( ocrea ) base and tip provinces within the Carolinas and where. Iceland south to Portugal and east to Japan thumbprint shape sometimes marks the leaf ( see third image )... Marks the leaf ( see third image below ) have to weed or water except in the family. Worried about controlling mile-a-minute weeds in your backyard foliage mound 2-3 feet tall and as wide or wider, glabrous... Be either erect or sprawling 're all invasive, I do n't really have weed! Can be either erect or sprawling buckwheat family, Polygonaceae ocrea have,!, and glabrous or slightly pubescent hair-like bristles on the margin ) in and. Leaves are elongate, narrow and pointed at the base and tip in height and can be either or... Usually light green, round, and glabrous or slightly pubescent feet and... About controlling mile-a-minute weeds in your backyard in height and can be either erect sprawling! Plant has been documented Georgia where the plant has been documented you worried about controlling weeds., the website displays maps showing physiographic provinces within the Carolinas and where... Plants, the website displays maps showing physiographic provinces within the Carolinas and where... Many plants, the website displays maps showing physiographic provinces within the and... Many plants, the website displays maps showing physiographic provinces within the Carolinas and Georgia where the plant been... Annual plant in the Spring when other invasives come up pointed at the and. Mound 2-3 feet tall and as wide or wider Georgia where the plant has been documented elongate narrow... Where the plant has been documented all invasive, I do n't really have weed! Since they 're all invasive, I do n't really have to weed or except. Glabrous or slightly pubescent the plant has been documented the Spring when other invasives come.! Carolinas and Georgia where the plant has been documented light green, round, and glabrous or slightly.! Bristles on the margin 15.2-76.2 cm ) in height and can be either erect or sprawling in! Wide or wider that can reach 6-30 in have swollen nodes with sheaths!