Rumex hymenosepalus

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Rumex hymenosepalus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Rumex
Species: R. hymenosepalus
Binomial name
Rumex hymenosepalus
Torr.

Rumex hymenosepalus, commonly known as canaigre, ganagra, wild rhubarb, Arizona dock, or tanner's dock,[1] is a perennial flowering plant which is native to the United States and Mexico. It has been cultivated in the southwestern United States as the roots are a good source of tannin, for use in leather tanning.[2] It is also a source of a mustard-colored dye.

The plant is adapted to very dry environments. The leaf is waxy and ridged so that water from light, misty rain collects along a central vein and filters down to the taproot.[3] Scientists call this process the plant's method of "self-irrigating".[4]

[edit] Synonyms

  • Rumex arizonicus Britton
  • Rumex salinus A.Nelson
  • Rumex hymenosepalus var. salinus (A. Nelson) Rech.
  • Rumex saxei Kellogg

(all from Tropicos [5]).

[edit] References

  1. ^ USDA GRIN taxonomy
  2. ^ Canaigre information at drugs.com
  3. ^ Kendrick, M. Desert plant plucks water from thin air. Scientific American July 2, 2009.
  4. ^ Rumex hymenosepalus: The plant that waters itself. Scientificblogging.com
  5. ^ http://www.tropicos.org/name/26000112?tab=synonyms

[edit] External links

Wikimedia Commons has media related to: Rumex hymenosepalus
Sources of tannins
Sources of condensed tannins
Areca catechu seed (arecatannins) | Broad bean (Vicia faba) | Grape (Vitis vinifera) | Quebracho wood | Mimosa bark (Acacia mollissima) | Myrtan or black marlock (Eucalyptus redunca)
Sources of hydrolysable tannins
Chestnut wood | Dhawa (Anogeissus latifolia) | Myrobalan fruit (Terminalia chebula) | Oak wood, bark or acorn cup (Valonea Quercus macrolepis) | Sumac (Tanner's sumach leaves - Rhus coriaria or Chinese gall on Rhus chinensis) | Tara pod (Caesalpinia spinosa)
Other sources
Alder (Alnus sp) | Avaram (Senna auriculata) | Babul (Acacia nilotica) | Birch (Betula sp) | Larch (Larix sp) | Hemlock (Tsuga sp) | mangrove | Pine (Pinus sp) | Spruce (Picea sp) | Urunday (Myracrodruon urundeuva) | Willow (Salix caprea)
Canaigre (Rumex hymenosepalus) | Garouille (Quercus coccifera) | Sea lavender (Limonium sp)
Divi-divi pod (Caesalpinia coriaria) | Sant pod (Acacia nilotica) | Teri pod (Caesalpinia digyna)
Whole plant
Prosopis sp. bark and wood (eg Prosopis humilis or Algarrobilla) | Tanoak (Notholithocarpus) | Tizra heartwood and root (Rhus pentaphylla)
Misc
Stub icon This Polygonaceae article is a stub. You can help Wikipedia by expanding it.
Retrieved from "http://en.wikipedia.org/w/index.php?title=Rumex_hymenosepalus&oldid=453405787"
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