curly dock

(Rumex crispus)

Conservation Status

IUCN Red List

not yet assessed

curly dock


NNA - Not applicable

SNA - Not applicable


not listed


Great Plains

FAC - Facultative


FAC - Facultative

Northcentral & Northeast

FAC - Facultative


Native of Africa, Asia, and Europe. Introduced and naturalized in North America.




Roadsides, fields, and disturbed sites.


June to August

Flower Color

Yellow to greenish


12 to 60


The stems become red with age.

The leaves are long and narrow, up to 6" long and 1" wide, on long petioles. They have a rounded to heart-shaped base. The leaf margins are wavy and crisped, hence the species name crispus. The upper leaf surface is dull, not shiny.

Flower stalks are jointed near the base.

The fruit has three membraneous sepals, called “valves”, each with an elongated, tuber-like projection, for a total of three tubercles per fruit. The margin the valve does not have conspicuous teeth. The fruit becomes dark brown with maturity.



Distribution Distribution Map   Sources: 2, 3, 4, 5, 7, 22, 28.




Polygonaceae (buckwheat)








Rumex crispus ssp. crispus

Rumex crispus ssp. fauriei

Rumex fauriei


curly dock

narrowleaf dock

sour dock

yellow dock











Referring to leaf edges that are wavy, the individual waves being wavy themselves with secondary waves.



The stalk of a leaf blade or compound leaf that attaches the leaf blade to the stem.

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  curly dock    


  curly dock   curly dock


  curly dock   curly dock
  curly dock   curly dock


  curly dock    


  curly dock    



  Curled Dock
Wez Smith
  Curled Dock  

Curled Dock (Rumex crispus).

  Rumex crispus CURLY DOCK
Frank Mayfield
  Rumex crispus CURLY DOCK  



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Other Videos
  Curly Dock (Rumex crispus)
Wandering Sole TV

Published on Oct 6, 2013

Curly Dock (Rumex crispus), also known as Yellow Dock, is a member of the buckwheat family (Polygonaceae). It is native to native to Europe and Western Asia.

  Curly Duck (Rumex crispus) - 2013-07-13

Published on Aug 2, 2013

Rumex crispus ("Curly Dock" or "Yellow Dock") is a perennial flowering plant in the family Polygonaceae.

De krulzuring (Rumex crispus) is een hemikryptofyte, vaste plant die behoort tot de duizendknoopfamilie (Polygonaceae).

  Curled Dock (Rumex crispus) - 2012-06-11

Published on Jun 12, 2012

Curled Dock (Rumex crispus), also known as Curly Dock, Yellow Dock, Sour Dock, Narrow Dock, sometimes as "narrow-leaved dock" (which properly refers to a variant of Sorrel), and ambiguously as "garden patience", is a perennial flowering plant in the family Polygonaceae.

De krulzuring (Rumex crispus) is een hemikryptofyte, vaste plant die behoort tot de duizendknoopfamilie (Polygonaceae).

  Curly Dock
Tim Goodblood

Published on Jul 24, 2012

Curly Dock or yellow dock, is a nutritious and multi-purpose plant. Used as a medicine, dye, and food. Also... leaves could be harvested early before flowering, and can then be prepared much like spinach.

  Weed of the Week #632-Curly Dock (From Ag PhD #632 5/16/10)

Uploaded on May 22, 2010

The guys deal with this ugly weed, Curly Dock, in this installment of the Weed of the Week.




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Anna Gronseth Prairie

Antelope Valley SNA

Avon Hills Forest SNA
North Unit

Baker Park Reserve

Belgium Prairie

Big Stone Lake State Park

Blaine Preserve SNA

Blanket Flower Prairie SNA

Blazing Star Prairie

Blue Mounds State Park

Brownsville Bluff SNA

Boot Lake SNA

Buffalo River State Park

Bunker Hills Regional Park

Butternut Valley Prairie SNA

Butterwort Cliffs SNA

Carpenter St. Croix Valley Nature Center

Carver Park Reserve

Cedar Mountain SNA

Cedar Rock SNA

Charles A. Lindbergh State Park

Cherry Grove Blind Valley SNA

Chippewa Prairie

Clinton Prairie SNA

Crosby Farm Regional Park

Crow Wing State Park

Crystal Spring SNA

Des Moines River SNA

Dodge Nature Center

Elm Creek Park Reserve

Falls Creek SNA

Felton Prairie SNA
Bicentennial Unit

Flandrau State Park

Forestville/Mystery Cave State Park

Franconia Bluffs SNA

French Regional Park

Glacial Lakes State Park

Glynn Prairie SNA

Hastings SNA

Hole-in-the-Mountain Prairie

Holthe Prairie SNA

Hyland Lake Park Reserve

Hythecker Prairie SNA

Iron Horse Prairie SNA

Joseph A. Tauer Prairie SNA

Kellogg Weaver Dunes SNA
Weaver Dunes Unit

Kilen Woods State Park

Lake Alexander Woods SNA
South Unit

Lake Bronson State Park

Lake Carlos State Park

Lake Elmo Park Reserve

Lake Louise State Park

Lake Rebecca Park Reserve

Langhei Prairie SNA

Lebanon Hills Regional Park

Lester Lake SNA

Lost Valley Prairie SNA

Malmberg Prairie SNA

Maplewood State Park

Margherita Preserve-Audubon Prairie

McKnight Prairie

Mille Lacs Kathio State Park

Miller Prairie
West Unit

Minnesota Valley NWR
Long Meadow Lake Unit
Rapids Lake Unit

Mound Spring Prairie SNA
North Unit

Myre-Big Island State Park

Nelson Wildlife Sanctuary

Northern Tallgrass Prairie NWR
Hoffman Unit
Touch the Sky Prairie Unit

Old Mill State Park

Ordway Prairie

Oronoco Prairie SNA

Osmundson Prairie SNA

Otter Tail Prairie SNA

Oxbow Park & Zollman Zoo

Pankratz Memorial Prairie
North Unit

Pembina Trail Preserve SNA
Crookston Prairie Unit
Pembina Trail Unit

Pin Oak Prairie SNA

Pine Bend Bluffs SNA

Plover Prairie
East Unit

Prairie Coteau SNA

Racine Prairie SNA

Red Rock Prairie

Regal Meadow

Rice Lake State Park

Richard M. & Mathilde Rice Elliott SNA

Ritter Farm Park

River Terrace Prairie SNA

Robert Ney Memorial Park Reserve

Rock Ridge Prairie SNA

Roscoe Prairie SNA

St. Croix Savanna SNA

Sand Prairie Wildlife Management and Environmental Education Area

Sandpiper Prairie SNA

Santee Prairie SNA

Savage Fen SNA

Schaefer Prairie

Schoolcraft State Park

Sedan Brook SNA

Seven Springs WMA

Sheepberry Fen

Shooting Star Prairie SNA

Split Rock Creek State Park

Spring Beauty Northern Hardwoods SNA

Spring Lake Park Reserve

Spring Prairie Preserve

Staffanson Prairie

Strandness Prairie

Swedes Forest SNA

Town Hall Prairie

Twin Valley Prairie Addition

Twin Valley Prairie SNA

Tympanuchus Prairie

Upper Sioux Agency State Park

Valley View Park, Oak Park Heights

Verlyn Marth Memorial Prairie SNA

Vermillion Highlands Research Recreation and WMA

Wahpeton Prairie WMA

Western Prairie SNA

Whitetail Woods Regional Park

Wild Indigo Prairie SNA

Wild River State Park

Yellow Bank Hills SNA

Zimmerman Prairie




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