Polygonum minimum
{{Short description|Species of flowering plant}}
{{Speciesbox
|image = UC1755378 Polygonum minimum.jpg
|genus = Polygonum
|species = minimum
|authority = S.Watson 1871
|synonyms_ref = [http://www.theplantlist.org/tpl1.1/record/tro-26000870 The Plant List, Polygonum minimum S. Watson ]
|synonyms = Polygonum torreyi S. Watson
}}
Polygonum minimum is a species of flowering plant in the knotweed family known by the common name broadleaf knotweed. It is native to much of western North America where it can be found in mountainous regions. It grows in the subalpine and alpine climates of high mountain ranges from Alaska to Arizona and New Mexico.[http://bonap.net/MapGallery/State/Polygonum%20minimum.png Biota of North America Program 2014 state-level distribution map]
Description
Polygonum minimum is an annual herb producing slender, stiff, zigzag-angled reddish stems up to 30 centimeters (1 foot) long, growing prostrate or erect. The leaves are lance-shaped to widely oval or nearly round and are located all along the stems but most crowded near the tips. Inflorescences occur in the leaf axils, each bearing one or more five-lobed white flowers.[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250060744 Flora of North America, Polygonum minimum S. Watson, 1871. Broad-leaf or leafy dwarf knotweed ]
References
{{Reflist}}
External links
- [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?5936,6248,6273 Jepson Manual Treatment - Polygonum minimum]
- [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Polygonum+minimum Polygonum minimum - Calphotos Photo gallery, University of California]
{{Taxonbar|from=Q7226464}}
Category:Flora of Northern America
Category:Plants described in 1871
{{Polygonaceae-stub}}