| 词条 | Polygonum utahense |
| 释义 |
| regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Eudicots | unranked_ordo = Core eudicots | ordo = Caryophyllales | familia = Polygonaceae | genus = Polygonum | species = P. utahense | binomial = Polygonum utahense | binomial_authority = Brenckle & Cottam 1940 | synonyms = *Polygonum utahensis
| synonyms_ref = [1] }}Polygonum utahense, the Utah knotweed, is an unresolved name for a putative North American species of plants in the buckwheat family.[2] It has been found only in the States of Utah and Arizona in the southwestern United States.[3]Polygonum utahense is a herb up to {{convert|50|cm|in|abbr=on}} tall. Stems are green or brown, not wiry. Leaves are narrow, up to {{convert|4|cm|in|abbr=on}} long. Flowers are pink or white.[4] References1. ^Tropicos, Polygonum utahensis Brenckle & Cottam {{Taxonbar|from=Q15601249}}2. ^{{cite web| title=The Plant List: Polygonum |date=2013 |url=http://www.theplantlist.org/tpl1.1/search?q=polygonum |publisher=Royal Botanic Gardens, Kew and Missouri Botanic Garden }} 3. ^Biota of North America Program 2014 county distribution map 4. ^Flora of North America, Polygonum utahense Brenckle & Cottam, 1940. Utah knotweed 5 : Polygonum|Endemic flora of the United States|Flora of Utah|Flora of Arizona|Plants described in 1940 |
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