What is Lythrum salicaria

Purple lythrum , scientific name:Lythrum salicaria , is a hardy perennial of the genus Lythrum of the department Lythraceae native to Japan, Eurasia, the Mediterranean. Often found in riparian wetlands. Similar to Lythrum (misogi Hagi), purple loosestrife plant larger, calyx and flower has a short-haired. At the base of the stem, hold the purple loosestrife leaf stems that have the Lythrum.　Accompanying piece between the sepals are ezohaggi whereas upright, the miso Hagi horizontal.

Common name: Purple lythrum,
scientific name:Lythrum salicaria
aka:Purple: ezo misogi Hagi., origin: Japan and Eurasia, Mediterranean, Distribution: Japan, Hokkaido-Kyushu, environment, field and roadside, life type: perennial, height: 100-180 cm, all grass: broad lanceolate, short-haired, leaf morphology, leaf length: 2-6 cm, phyllotaxis: holding in their leaves at the base stem, petiole: no, calyx: short-haired and accompanying piece between the sepals: upright, flower-shaped spikes, Flowers height: 20-30 cm, flowering period: July-September, color: purple, flower diameter:1.5cm