Rumex hymenosepalus, commonly known as canaigre, canaigre dock, ganagra, wild rhubarb, Arizona dock, and tanner's dock, is a perennial flowering plant which is native to the North American deserts in the southwestern United States and northern Mexico. It is a common food plant of the ruddy copper larvae.
It has been cultivated in the southwestern United States for the roots, a good source of tannin, which is used in leather tanning. It also yields a warm, medium brown dye. The leaves and leaf stalks are considered edible when young, the older leaf stalks cooked and eaten like rhubarb, which is in the same plant family.
- Rumex arizonicus Britton
- Rumex salinus A. Nelson
- Rumex hymenosepalus var. salinus (A. Nelson) Rech.
- Rumex saxei nom. nudum. UNAM
- Rumex hymenosepalus. Flora of North America.
- "Rumex hymenosepalus". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 21 December 2017.
- Warren, Andrew. "Butterflies of Oregon Their Taxonomy, Distribution, and Biology". Lepidoptera of North America. 6.
- Canaigre. drugs.com
- American Indian Cooking: Recipes from the Southwest, Carolyn Niethammer
- Torrey, J. 1859. Report on the United States and Mexican Boundary. Botany 2(1): 177–178. 1859.1
|Wikisource has the text of the 1905 New International Encyclopedia article Canaigre.|
- Calflora Database: Rumex hymenosepalus (Canaigre dock, Wild rhubarb)
- The Jepson Manual eFlora (TJM2) treatment of Rumex hymenosepalus
- UC Photos gallery of Rumex hymenosepalus
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