Rumex venosus Pursh
Veiny Dock, Winged Dock
Polygonaceae (Buckwheat Family)
USDA Symbol: RUVE2
Stout, erect, leafy, reddish stems with conspicuous white sheaths at nodes and reddish-orange flowers in thick clusters.
The reddish-orange flower clusters are conspicuous in the late spring. Although their pale translucence and shape are reminiscent of clusters of begonias (hence one of the common names), this plant is not closely related to begonias. After flowering, the broad, sepal-like segments catch the wind and tumble the seed to new places. The similar Canaigre (pronounced can-i-gray) Desert Rhubarb (R. hymenosepalus), found in sandy areas from Wyoming south to southern California and western Texas, has sepal-like segments rarely more than 3/4" (2 cm) wide and stout stems growing from a cluster of thick roots; tannin extracted from its roots was used by early Spanish settlers to tan hides. A common name for many of the more weedy Rumex species is Sour Dock; the sour flavor comes from oxalic acid.
From the Image Gallery
Bloom InformationBloom Color: Green , Brown
Bloom Time: Apr , May , Jun
DistributionUSA: CA , CO , IA , ID , IN , KS , MT , ND , NE , NM , NV , OK , OR , SD , TX , UT , WA , WI , WY
Native Distribution: Southern British Columbia south to northeastern California and east to central Canada; also throughout Great Plains.
Native Habitat: Open banks, ravines, grasslands, and sagebrush deserts, often where sandy.
Growing ConditionsLight Requirement: Sun
Soil Moisture: Dry
Soil Description: Sandy
BenefitWarning: The leaves of Rumex species can be toxic and in some cases fatal to animals if ingested in high quantities. Humans should also restrict intake of the leaves of these plants. Sensitivity to a toxin varies with a personís age, weight, physical condition, an
Conspicuous Flowers: yes
National Wetland Indicator Status
Additional resourcesUSDA: Find Rumex venosus in USDA Plants
FNA: Find Rumex venosus in the Flora of North America (if available)
Google: Search Google for Rumex venosus
MetadataRecord Modified: 2010-11-06
Research By: TWC Staff