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Common Name: Sharp Dock
Rumex conglomeratus is a perennial plant that can grow up to 1.00 metres tall.
It is harvested from the wild for local use as a food, medicine and source of materials.
Plants can contain quite high levels of oxalic acid, which is what gives the leaves of many members of this genus an acid-lemon flavour. Perfectly alright in small quantities, the leaves should not be eaten in large amounts since the oxalic acid can lock-up other nutrients in the food, especially calcium, thus causing mineral deficiencies. The oxalic acid content will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition[
Europe, including Britain, from Scandanavia south and east to N. Africa, W. Asia.
Damp grassy places, sometimes also found in woods[
Succeeds in most soils but prefers a deep fertile moderately heavy soil that is humus-rich, moisture-retentive but well-drained and a position in full-sun or part shade[
This species is often confused with R. sanguineus[
Leaves - cooked[
]. Eaten as greens[
]. Very bitter, especially as the leaves grow older[
Seed - raw or cooked. It can be ground into a powder and added to flours when making bread, biscuits etc[
]. The seed is small and fiddly to harvest.
The root is antiscorbutic and astringent[
]. An infusion is taken internally in the treatment of scurvy and as a general blood cleanser. This infusion is also useful in the treatment of bleeding[
]. Externally it is made into an ointment and applied to cutaneous eruptions[
]. The root is harvested in early spring and dried for later use[
A decoction of the leaves is used in the treatment of several skin diseases[
Dark green to brown and dark grey dyes can be obtained from the roots of many species in this genus, They do not need a mordant[
Seed - sow spring in situ.
Division in spring.