Polygonum austiniae

Polygonum austiniae, common name Mrs. Austin's knotweed, is a plant species in the buckwheat family. It is native to western Canada and the western United States, from Alberta and British Columbia south as far as California, Nevada, and Wyoming.^[3]

Polygonum austiniae
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Polygonaceae
Genus:	Polygonum
Species:	P. austiniae
Binomial name
Polygonum austiniae Greene 1885
Synonyms[1][2]
Polygonum austinae Greene Polygonum douglasii subsp. austiniae (Greene) A.E. Murray Polygonum douglasii subsp. austiniae (Greene) J.C. Hickman Polygonum douglasii var. austiniae (Greene) M.E. Jones

Polygonum austiniae is an branching herb up to 20 cm (7.9 in) tall.^[2][4] Its habitats include sagebrush plains and ponderosa-pine forest.^[5]