Polygonum persicaria

 Polygonum persicaria Cockscomb

Hierba pejiguera

This plant is very common in humid, damp areas and is native to Europe and Asia. It can grow as tall as 80cms and flowers from July to November. It's leaves contain tannins and are effective against diarrhoea. The leaves can also be used in salads, as well as applying to the skin for sores and skin ulcers. They contain a yellow dye when infused.

Rumex crispus

Rumex crispus Curly dock

I think I have identified this correctly, but I am not 100% certain. This pretty dock is native to Europe and west Asia, though it has now naturalised on other continents and classed as a pest. The curly leaves contain oxalic acid and have been used as a green vegetable, but have to be boiled many times to dilute the oxalic acid, which may cause kidney stones. The leaves are used on the skin to relieve irritation and rashes. The leaves also contain Vitamins A and C.

Rumex pulcher

Rumex pulcher Fiddle dock

Acedera

This dock is native to Eurasia and north Africa and can grow to an height of 70cms.  It is a perennial and has alternate leaves, shaped a little like a violin, hence the common name of "fiddle". The flowers are found in cluster with toothed edges.

Rumex scutatus ssp induratus

Rumex scutatus ssp induratus

Acederilla

These beauties flower from March to July and grow from 30-80cms in height. It is native to southern and central of the Iberian Peninsula and Morocco and Algeria. It can grow to an altitude of 1500m on dry hillsides and slopes.