sunny purple loosestrife flowers - lythrum salicaria

astringent background belgium blooming bog border botanical botany brown cultivar dark decorative diarrhea dysentry embankment flanders flemish flora floral flower flowering flowers focus garden green herb hike hiking invasive kalkense loosestrife lythraceae lythrum many marsh medicinal medicine meersen natural nature ornamental plant pond pool purple reed reserve salicaria selective side sunny tourism tourist waterplant waterside wild wildflower wildflowers