Rumex venosus

Species category

Weed

Common name

veiny dock

Diagnostic characters

Planting unit

AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.

Shape

ObovateObovate:
Inverted egg shaped with apical end the broadest.
, triangular in cross section

Size

  • Length 7 mm 
  • Width 4 mm 
  • Thickness 4 mm 

Color

Dark brown 

Texture

Smooth

Other structures

Remnants of calyx parts present at base of acheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
. Ridges of acheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
are slightly raised (winged). The center of the three sides are concave.

Identification notes

AchenesAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
are large and dark. The slope of the ridges at the base is perpendicular to the acheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
axis, however they approach the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
at a more acute angle.

Noxious weed seed categories

State Noxious Weed: Alabama, Arkansas, Connecticut, Georgia, Kansas, Louisiana, Mississippi, Missouri, Nebraska, Oklahoma, South Carolina, Tennessee, Texas, Washington

AOSA examination list

Not included

More information

For more information, see ISMA fact sheet, Rumex spp.

Nomenclature

Family

Polygonaceae

Valid name

Rumex venosus Pursh

 Rumex venosus.  Achenes with raised ridges with concave sides in between.
Rumex venosus. Achenes with raised ridges with concave sides in between.