Wild dock and wild sorrel
Rumex crispus and Rumex acetosella
Description: Wild dock is a stout plant with most of its leaves at the base of its stem that is commonly 15 to 30 centimeters (6 to 12 inches) long. The plants usually develop from a strong, fleshy, carrotlike taproot. Its flowers are usually very small, growing in green to purplish plumelike clusters. Wild sorrel is similar to wild dock but smaller. Many of the basal leaves are arrow-shaped. They are smaller than those of dock and contain sour juice.
Habitat and Distribution: These plants can be found in almost all climatic zones of the world. They can grow in areas of high or low rainfall. Many kinds are found as weeds in fields, along roadsides, and in waste places.
Edible Parts: Because of the tender nature of their foliage, sorrel and dock are useful plants, especially in desert areas. You can eat their succulent leaves fresh or slightly cooked. To take away the strong taste, change the water once or twice during cooking—a useful hint in preparing many kinds of wild greens.
All text and images from the U.S. Army Field Manual 3-05.70: Survival.
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