Rumex crispus (Curled Dock) is a species of perennial herb in the family Polygonaceae. It has a self-supporting growth form. It is native to Tunisia, Latvia, Myanmar, North Korea, South Korea, Romania, Syria, Italy, Thailand, United Kingdom, Iraq, Tajikistan, Portugal, Spain, the Netherlands, Kazakhstan, Ireland, Lebanon, Morocco, Switzerland, Poland, Norway, Japan, Uzbekistan, Lithuania, Iran, Taiwan, Kyrgyzstan, Turkey, Israel, Sweden, Pakistan, Mongolia, Libya, Russia, Moldova, and Ukraine. It has simple, broad leaves. It is a photoautotroph. Individuals can grow to 0.73 m.
EOL has data for 24 attributes, including: