Lythrum alatum
species of plant
Lythrum alatum, commonly known as winged loosestrife, winged lythrum or (in Britain and Ireland) angled purple-loosestrife, is a species of flowering plant belonging to the family Lythraceae. It is endemic to wetland areas in central and eastern United States and Ontario.
Description
Winged loosestrife is an upright, branching herbaceous plant growing to about one metre tall. The stems are woody in the lower parts of the plant, square in cross section with slightly winged angles. The leaves are mostly opposite, stalk-less, broadly oblong and tapering towards the tip. They have smooth un-toothed edges. The flowers are borne singly or in pairs in the axils of the much reduced upper leaves. The calyx forms a tube about 0.6 millimetres long and has six pointed teeth. The six rose-pink petals have a magenta central vein and are about 5 millimetres long and 2 millimetres wide. There are six stamens with pink filaments and purple anthers.
This brief starts where responsible research should: with the source description of “Lythrum alatum” as species of plant. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as species of plant. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 23, 2026. The linked authority identifier is Q1498063. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Lythrum alatum” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.