Rumex orthoneurus is a species of flowering plant in the knotweed family known by the common names Chiricahua dock and Blumer's dock. It is native to western North America, where it can be found in Arizona, New Mexico, and Sonora.This large rhizomatous perennial herb may reach one to two meters in height. The semi-succulent basal leaves may be up to 45 centimeters long. One distinguishing characteristic is the veining on the leaves, with secondary veins extending perpendicular to the midvein.
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