Veronica peregrina




Family Plantaginaceae (also placed in Scrophulariaceae)
Tribe Veroniceae
Scientific name Veronica peregrina L.
Synonyms Veronica carnulosa Lamarck; Veronica caroliniana Walter; Veronica chillensis Kunth; Veronica laevis Lamarck; Veronica marilandica Murray; Veronica pallescens Gaterau; Veronica peregrina L. forma xalapensis (Kunth) Kitagawa; Veronica peregrina L. subsp. typica Pennell; Veronica peregrina L. subsp. xalapensis (Kunth) Pennell; Veronica peregrina L. var. laurentiana Victorin; Veronica peregrina L. var. pubescens Honda; Veronica peregrina L. var. typica Pennell; Veronica peregrina L. var. xalapensis (Kunth) Pennell; Veronica peruviana Willdenow ex A. Dietrich; Veronica romana L.; Veronica sherwoodii Peck; Veronica xalapensis Kunth
Common name (Japanese common name) mushikusa (ムシクサ, 虫草 [meaning: worm weed])
(English common name) American speedwell, necklaceweed, neckweed, purslane speedwell, wandering speedwell
Distribution (Japan) Honshu, Shikoku, Kyushu
(Other nations) Russia, Korea, China, Mongolia, Europe, Canada, USA, Mexico, Bahamas, Hispaniola, Jamaica, Puerto Rico, Guatemala, Panama, Brazil, Bolivia, Colombia, Ecuador, Argentina, Chile
Habitat Swamp, rice paddy, riverside
Chromosomal number 2n=52
Description Plants 5-20cm tall, non hair. Leaves 1.5-2cm long, 3-5mm wide. Flowers calyx 3.5-4.5mm long, white corollas 2-3mm across, flowering in April to May. Annual plants.
Reference Veronica peregrina L.
Veronica peregrina Linnaeus
Veronica peregrina L.
Veronica peregrina L.
Herbicidal method (US Patent 4165229/1979)
Methods for regulating the growth of plants and growth regulant compositions (US Patent 4863506/1989)
Herbicide and method with the glyphosate-urea adduct of sulfuric acid (US Patent 5116401/1992)
Plant control composition and methods of use (US Patent 5221659/1993)
Systemic herbicides and methods of use (US Patent 5288692/1994)
Glyphosate-sulfuric acid adduct herbicides and use (US Patent 5411944/1995)
Herbicide microemulsion-forming-concentrates, microemulsions, and methods (US Patent 7094735/2006)
Herbicidal compositions containing glyphosate and bipyridilium (US Patent 7008904/2006)



May 2007
at Ushiku Forest Park
May 2007
at Ushiku Forest Park
May 2007
at Ushiku Forest Park