Persicaria lapathifolia




Family Polygonaceae
Subfamily Polygonoideae
Scientific name Persicaria lapathifolia (L.) S. F. Gray
Synonyms Persicaria bioritsuensis (Ohki) Sasaki; Persicaria glabra (Willdenow) M. Gómez de la Maza y Jiménez var. scabrinervis (Hooker f.) H. Hara; Persicaria incarnata (Elliott) Small; Persicaria krugii Gross & Loesener; Persicaria lapathifolia (L.) S. F. Gray subsp. nodosa (Persoon) Á. Löve; Persicaria lapathifolia (L.) S. F. Gray var. tomentosa (Schrank) H. Gross; Persicaria nodosa (Persoon) Opiz; Persicaria paludicola Small; Persicaria pseudonodosa (Ohki) Sasaki; Persicaria tomentosa (Schrank) E. P. Bicknell; Polygonum bioritsuense Ohki; Polygonum fusiforme Greene; Polygonum glabrum Willdenow var. scabrinerve Hooker f.; Polygonum glandulosum R. Brown; Polygonum glutinosum Wallich ex Meisner; Polygonum incanum F. W. Schmidt; Polygonum incarnatum Elliott; Polygonum komarovii H. Leveille; Polygonum lanatum Roxburgh; Polygonum lapathifolium L.Polygonum lapathifolium L. subsp. pallidum (Withering) Fries; Polygonum lapathifolium L. var. incanum (F. W. Schmidt) Koch; Polygonum lapathifolium L. var. incarnatum (Elliott) S. Watson; Polygonum lapathifolium L. var. lanatum (Roxburgh) Steward; Polygonum lapathifolium L. var. nodosum (Pers.) Small; Polygonum lapathifolium L. var. ovatum A. Braun; Polygonum lapathifolium L. var. prostratum C.F.H. Wimmer; Polygonum lapathifolium L. var. salicifolium Sibthorp; Polygonum linicola Sutulow; Polygonum nodosum Persoon; Polygonum nodosum Persoon var. incarnatum (Elliott) A. Gray; Polygonum nutans Roxburgh; Polygonum oneillii Brenckle; Polygonum pallidum Withering; Polygonum pensylvanicum L. subsp. oneillii (Brenckle) Hultén; Polygonum persicaria L. var. lapathifolium (Linnaeus) Meisner; Polygonum persicaria L. var. tomentosum Schrank; Polygonum pseudonodosum Ohki; Polygonum pyramidale H. Léveillé; Polygonum quadrifidum Hamilton ex Meisner; Polygonum scabrum Moench; Polygonum simlense Royle ex Babington; Polygonum tenuiflorum J. Presl; Polygonum tomentosum (Schrank) Guerke; Polygonum vaniotiana H. Léveillé
Common name (Japanese common name) oh-inu-tade (オオイヌタデ, 大犬蓼 [meaning: large inu-tade (inu-tade = Persicaria longiseta)])
(English common name) curlytop knotweed, pale smartweed
Distribution (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa
(Other nations) Russia, Korea, China, Taiwan, Mongolia, Vietnam, Thailand, Indonesia, Myanamar, Bhutan, Nepal, India, Pakistan, Afganistan, Kazakhstan, Tajikistan, Turkmenistan, Uzbekistan, Caucasus, Iran, Iraq, Israel, Lebanon, Syria, Turkey, Cyprus, Europe, Egypt, Algeria, Morocco, Tunisia
Habitat Roadside, field, farm yard
Chromosomal number 2n=22
Description Plants electing 0.8-2m tall. Leaves 15-25cm long. Flowers inflorescences 3-7cm long, pink or white perianths ca. 2.5-3mm long, flowering in June to November. Annual plants.
Reference Persicaria lapathifolia (L.) Gray
Polygonum lapathifolium L.
Persicaria lapathifolia (Linnaeus) Gray
Polygonum lapathifolium L.
Note Naturalized plants (introduced in Meiji era, widespread mainly in 1960th).



August 2007 at roadside August 2007 at roadside August 2007 at roadside



August 2007 at roadside August 2007 at roadside August 2007 at roadside



August 2007 at roadside August 2007 at roadside