Curly Dock Taken at Baron's Haugh on 18th July 2020 using Panasonic Lumix LX5 in macro mode. Taken at Strathclyde Park on 1st June 2020 using Nikon D500 with Sigma 105 mm macro lens. Curly Dock. Species: Order: Family: Habit: A.K.A: Rumex crispus. Caryophyllales. Polygonaceae. Perennial. Curled Dock. Habitat: Height: Feature: Roadsides, railway beds and car parks. 1 m. There are over 200 members of the Rumex genus. It can be used as a wild leaf vegetable; the young leaves should be boiled in several changes of water to remove as much of the oxalic acid in the leaves as possible. Dock leaves are an excellent source of both vitamin A and protein, and are rich in iron and potassium.