Proatriplex
| Proatriplex | |
|---|---|
| Proatriplex pleiantha Sandoval County, New Mexico, USA | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Order: | Caryophyllales | 
| Family: | Amaranthaceae | 
| Subfamily: | Chenopodioideae | 
| Tribe: | Atripliceae | 
| Genus: | Proatriplex (W.A.Weber) Stutz & G.L.Chu | 
| Species: | P. pleiantha | 
| Binomial name | |
| Proatriplex pleiantha | |
| Synonyms | |
| 
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Proatriplex is a monotypic plant genus in the subfamily Chenopodioideae of the family Amaranthaceae, with the only species Proatriplex pleiantha (syn. Atriplex pleiantha). It is known by the common names four-corners orach and Mancos shadscale. It occurs in the Navajo Basin of Arizona, Colorado, New Mexico, and Utah.