''Rumex orthoneurus'' is a species of flowering plant in the knotweed family known by the common names Chiricahua Mountain dock and Blumer's dock. It is native to western

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

, where it can be found in Arizona, New Mexico, and

Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is d ...

.''Rumex orthoneurus''.
Center for Plant Conservation. This large rhizomatous perennial herb may reach one''Rumex orthoneurus''.
Flora of North America. to two meters''Rumex orthoneurus''.
Arizona Game and Fish Department. in height. The semi-

succulent In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...

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. Leaves higher on the stem are smaller and more pointed. The inflorescence is a dense

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...

occupying the upper half of the stem. Flowering occurs in July and August.''Rumex orthoneurus''.
The Nature Conservancy. This species grows in mountain and forest wetland habitat, such as meadows and streambanks. It may grow alongside ''

Rumex occidentalis ''Rumex occidentalis'' is a flowering plant species belonging to the family Polygonaceae. Commonly known as western dock, ''Rumex occidentalis'' can be found in parts of Western North America. Description Western dock is considered a perennial ...

'', a closely related species often confused with it. Other species in the habitat include ''

Hymenoxys hoopesii ''Hymenoxys hoopesii'' (formerly ''Dugaldia hoopesii'') is a species of flowering plant in the daisy family known by the common names owl's claws, orange sneezeweed, and yerba del lobo. It is native to the western United States, where it grows in ...

'', '' Carex'' spp., and '' Juncus'' spp. This species is threatened by livestock, which relish the semi-succulent leaves. It is also threatened by recreational activity in the habitat.

References

{{Taxonbar, from=Q7379254 orthoneurus Flora of Arizona Flora of New Mexico Flora of Sonora