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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[2]: 436 or smartweeds. [3] It has a cosmopolitan distribution, with species occurring nearly worldwide. [3][4] The genus was segregated from Polygonum. [5]
Persicaria perfoliata. Fagopyrum perfoliatum (L.) Raf. Persicaria perfoliata (basionym Polygonum perfoliatum[1]) is a species of flowering plant in the buckwheat family. Common names include mile-a-minute, devil's tail, giant climbing tearthumb, [2][3] and Asiatic tearthumb. [4] It is a trailing herbaceous annual vine with barbed stems and ...
Fallopia baldschuanica is a vining plant with woody, climbing stems at least 10 metres (33 ft) in length. The pointed oval or nearly triangular leaves are up to 10 centimetres (4 in) long and borne on petioles. The inflorescence is an open array of narrow, branching, drooping or spreading clusters of white flowers, each cluster reaching a ...
Persicaria maculosa is an annual herb up to 1 metre (3 ft 3 in) tall, [11] 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 ...
Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a species of herbaceous perennial plant in the knotweed and buckwheat family Polygonaceae. [ 1 ] [ 2 ] Common names include Japanese knotweed [ 2 ] and Asian knotweed . [ 3 ]
Description. When the genus is defined narrowly, Polygonum species are annual or perennial herbaceous plants, rarely shrubby, with much branched stems. The leaves are arranged alternately, usually less than 2 cm (0.8 in) long, with a length greater than the width. They have a membranous ochrea (a sheath around the stem nodes).
Persicaria orientalis is a species of flowering plant in the family Polygonaceae, [1] known as kiss-me-over-the-garden-gate and princess-feather. [2] It was first described, as Polygonum orientale, by Carl Linnaeus in 1753. It was transferred to the genus Persicaria by Édouard Spach in 1841. [3] Its native distribution is unclear. [4]
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, [2] and it grows elsewhere as an introduced species ...