Rumex crispus (Curled Dock) is a species of perennial herb in the family Polygonaceae. They have a self-supporting growth form. They are native to Mongolia, Tunisia, Romania, Portugal, North Korea, Taiwan, South Korea, Switzerland, Syria, Poland, Lebanon, Iraq, Ireland, Spain, Italy, Turkey, Kyrgyzstan, Ukraine, Morocco, Japan, The Netherlands, Lithuania, Pakistan, Tajikistan, Israel, Norway, Western North America, Russia, Thailand, United Kingdom, Libya, Moldova, Uzbekistan, Sweden, Latvia, Myanmar, Iran, and Kazakhstan. They have simple, broad leaves and achene. Flowers are visited by Viceroy. Individuals can grow to 0.73 m.
EOL has data for 31 attributes, including: