Polygonum humifusum

Polygonum humifusum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Polygonaceae
Genus:	Polygonum
Species:	P. humifusum
Binomial name
	Polygonum humifusum; C.Merck ex K.Koch 1849 not Pall. ex Ledeb. 1850
Synonyms
	Polygonum humifusum f. yamatutae (Kitag.) C.F. Fang; Polygonum mandshuricum Skvortsov; Polygonum yamatutae Kitag.; Polygonum humifusum subsp. caurianum (B.L. Rob.) Costea & Tardif; Polygonum caurianum B.L. Rob. ;

Polygonum humifusum is an Asian and North American species of plants in the buckwheat family. It grows in arctic and subarctic regions of eastern Russia, Mongolia, northeastern China, Alaska, and Canada (Yukon, Northwest Territory, Nunavut, British Columbia, northern Ontario).^[2]^[3]

Polygonum humifusum is a branching herb with erect or reclining stems up to 30 cm (1 foot) tall. Flowers are green, pink, or white, produced in groups of 2–5. It grows in fields and on riverbanks at elevations less than 400 m (1300 feet).^[4]

References

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[1] The Plant List, Polygonum humifusum C. Merck ex K. Koch

[2] Biota of North America Program 2014 state-level distribution map

[3] Pan-Arctic Flora, 410105 Polygonum humifusum C. Merk ex K. Koch

[y-4] Flora of China Polygonum humifusum Merk ex C. Koch, 1849. 普通萹蓄 pu tong bian xu

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