Species Search
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Knotweeds, Smartweeds, and Waterpeppers
(Genus Persicaria)
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Persicaria is a genus of herbaceous flowering plants in the knotweed family, Polygonaceae. Plants of the genus are known commonly as knotweeds:436 or smartweeds. It has a cosmopolitan distribution, with species occurring nearly worldwide. The genus was segregated from Polygonum.
(Wikipedia)
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Japanese Knotweed
(Reynoutria japonica)
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Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a large species of herbaceous perennial plant of the knotweed and buckwheat family Polygonaceae. It is commonly known as Asian knotweed or Japanese knotweed. It is native to East Asia in Japan, China and Korea. In North America and Europe, the species has successfully established itself in numerous habitats and is classified as an invasive species in several countries.
(Wikipedia)
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American Jumpseed
(Persicaria virginiana)
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Persicaria virginiana, also called jumpseed, Virginia knotweed or woodland knotweed is a North American species of smartweed within the buckwheat family. It is unusual as a shade-tolerant member of a mostly sun-loving genus. Jumpseed is a perennial, named for its seeds which can "jump" several feet when a ripe seedpod is disturbed.
(Wikipedia)
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Low Smartweed
(Persicaria longiseta)
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Persicaria longiseta is a species of flowering plant in the knotweed family known by the common names Oriental lady's thumb, bristly lady's thumb, Asiatic smartweed, long-bristled smartweed, Asiatic waterpepper, bristled knotweed, bunchy knotweed, and tufted knotweed. It is native to Asia (China, India, Russia, Japan, Malaysia, etc.), and it is present in North America and Europe as an introduced species and often a weed.
(Wikipedia)
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Spotted Lady's Thumb
(Persicaria maculosa)
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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. It is widespread across Eurasia from Iceland south to Portugal and east to Japan. 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 continen
(Wikipedia)
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Prostrate Knotweed
(Polygonum aviculare)
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Polygonum aviculare or common knotgrass is a plant related to buckwheat and dock. It is also called prostrate knotweed, birdweed, pigweed and lowgrass. It is an annual found in fields and wasteland, with white flowers from June to October. It is widespread across many countries in temperate regions, apparently native to Eurasia and North America, naturalized in temperate parts of the Southern Hemisphere.
(Wikipedia)
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Pale Smartweed
(Persicaria lapathifolia)
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Persicaria lapathifolia (syn. Polygonum lapathifolium), known as pale persicaria, is a plant of the family Polygonaceae. It is closely related to Persicaria maculosa and as such is considered a weed in Britain and Europe. Other common names for the plant include pale smartweed, curlytop knotweed, and willow weed. It is a species complex made up of a great many varying forms, sometimes considered varieties. The environment also has a s
(Wikipedia)
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Water Smartweed
(Persicaria amphibia)
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Persicaria amphibia (syn. Polygonum amphibium) is a species of flowering plant in the knotweed family known by several common names, including longroot smartweed, water knotweed, water smartweed, and amphibious bistort. It is native to much of North America, Asia, Europe, and parts of Africa, and it is known elsewhere as an introduced species and sometimes a noxious weed.
(Wikipedia)
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Swamp Smartweed
(Persicaria hydropiperoides)
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Persicaria hydropiperoides is a New World species of flowering plant in the buckwheat family known by the common names swamp smartweed and false waterpepper. It is widespread across much of North America and South America. It grows in moist and wet habitats, and is sometimes semi-aquatic.
(Wikipedia)
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Black-Bindweed
(Fallopia convolvulus)
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Fallopia convolvulus, the black-bindweed or wild buckwheat, is a fast-growing annual flowering plant in the family Polygonaceae native throughout Europe, Asia and northern Africa. It is an arable plant.
(Wikipedia)
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Mile-a-minute Weed
(Persicaria perfoliata)
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Persicaria perfoliata is a synonym for Polygonum perfoliatum, a species of flowering plant in the buckwheat family. Common names include mile-a-minute weed, devil's tail, giant climbing tearthumb, and Asiatic tearthumb. It is a trailing herbaceous annual vine with barbed stems and triangular leaves. It is native to most of temperate and tropical eastern Asia, from eastern Russia in the north down to the Philippines and India in the south.
(Wikipedia)
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Arrow-leaved Tearthumb
(Persicaria sagittata)
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Persicaria sagittata, common names American tearthumb, arrowleaf tearthumb, or arrowvine, is a plant species widespread in the eastern half of North America as well as in eastern Asia. It has been found in every state and province from Texas to Manitoba to Newfoundland to Florida, plus Colorado and Oregon. It also grows in China, the Russian Far East, Siberia, Korea, Japan, northern India and Mongolia. It grows in moist areas along lake shores, stream banks, etc.
(Wikipedia)
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Pinkweed
(Persicaria pensylvanica)
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Polygonum pensylvanicum (syn. Persicaria pensylvanica) is a species of flowering plant in the buckwheat family, Polygonaceae. It is native to parts of North America, where it is widespread in Canada and the United States. It has also been noted as an introduced species in parts of Europe and South America. Common names include Pennsylvania smartweed and pinkweed.
(Wikipedia)
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Shuttle-shaped Dart
(Agrotis puta)
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Agrotis puta, the shuttle-shaped dart, is a moth of the family Noctuidae. The species was first described by Jacob Hübner in 1803. It is common in the western part of Europe, but is also found in southern and central Europe, as well as North Africa and the Middle East.
(Wikipedia)
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Dotted Knotweed
(Persicaria punctata)
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Persicaria punctata (syn. Polygonum punctatum) is a species of flowering plant in the knotweed family known by the common names dotted smartweed and dotted knotweed.
(Wikipedia)
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Waterpepper
(Persicaria hydropiper)
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Water-pepper, water pepper or marshpepper knotweed (Persicaria hydropiper, syn. Polygonum hydropiper) is a plant of the family Polygonaceae. It grows in damp places and shallow water. It is a widespread plant, found in Australia, New Zealand, temperate Asia, Europe, and North America. It has some use as a spice because of its pungent flavor.
(Wikipedia)
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Alpine Bistort
(Bistorta vivipara)
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Persicaria vivipara is a perennial herbaceous flowering plant in the knotweed and buckwheat family Polygonaceae, commonly known as alpine bistort. Scientific synonyms include Bistorta vivipara and Polygonum viviparum. It is common all over the high Arctic through Europe, North America, and temperate and tropical Asia. Its range stretches further south in high mountainous areas such as the Alps, Carpathians, Pyrenees, Caucasus, and the Tibetan Plateau.
(Wikipedia)
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Climbing False Buckwheat
(Fallopia scandens)
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Fallopia scandens (climbing false buckwheat) is a species of Fallopia native to North America. It is a herbaceous perennial plant which grows from to 1–5 m (39–197 in) tall. Although they are semi-erect during bloom, when they are producing fruit, they hang from their pedicels in a downward position. Both the fruit and flower are greenish-white in appearance. In North America, it is often misidentified with fallopia dumetorum, a species endemic to Europe.
(Wikipedia)
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Giant Knotweed
(Reynoutria sachalinensis)
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Reynoutria sachalinensis (giant knotweed or Sakhalin knotweed Japanese オオイタドリ ooitadori, Russian Горец сахалинский, Гречиха сахалинская; syns. Polygonum sachalinense, Fallopia sachalinensis) is a species of Fallopia native to northeastern Asia in northern Japan (Hokkaidō, Honshū) and the far east of Russia (Sakhalin and the southern Kurile Islands).
(Wikipedia)
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Fringed Bindweed
(Fallopia cilinodis)
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Polygonum ciliinode (synonym Fallopia ciliinodis) is a species of flowering plant in the family Polygonaceae, native to central and eastern Canada, and the north-central and eastern United States. The specific epithet is also spelt cilinode.
(Wikipedia)
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Tuber Fleeceflower
(Reynoutria multiflora)
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Reynoutria multiflora (synonyms Fallopia multiflora and Polygonum multiflorum) is a species of flowering plant in the buckwheat family Polygonaceae. It is known as tuber fleeceflower and Chinese knotweed. It is native to central and southern China.
(Wikipedia)
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Oval Leaf Knotweed
(Polygonum arenastrum)
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Polygonum arenastrum, commonly known as equal-leaved knotgrass,is a summer annual flowering plant in the knotweed family Polygonaceae. It is native to Europe and can be found on other continents as an introduced species and a common noxious weed. Other common names include common knotweed, prostrate knotweed, mat grass, oval-leaf knotweed, stone grass, wiregrass, and door weed, as well as many others, knotweed was first seen in
(Wikipedia)
