Polygonum utahense

Polygonum utahense
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Polygonaceae
Genus:	Polygonum
Species:	P. utahense
Binomial name
	Polygonum utahense; Brenckle & Cottam 1940
Synonyms
	Polygonum utahensis; Polygonum douglasii var. utahense (Brenckle & Cottam) S.L.Welsh;

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 50 cm (20 in) tall. Stems are green or brown, not wiry. Leaves are narrow, up to 4 cm (1.6 in) long. Flowers are pink or white.^[4]

References

^ Tropicos, Polygonum utahensis Brenckle & Cottam
^ "The Plant List: Polygonum". Royal Botanic Gardens, Kew and Missouri Botanic Garden. 2013.
^ Biota of North America Program 2014 county distribution map
^ Flora of North America, Polygonum utahense Brenckle & Cottam, 1940. Utah knotweed

[1] Tropicos, Polygonum utahensis Brenckle & Cottam

[PlantList-2] "The Plant List: Polygonum". Royal Botanic Gardens, Kew and Missouri Botanic Garden. 2013.

[3] Biota of North America Program 2014 county distribution map

[rosalie-4] Flora of North America, Polygonum utahense Brenckle & Cottam, 1940. Utah knotweed

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