Rumex congilomeratus, a
perennial herb native to Europe, grows wild on roadsides,
riverbanks, and railroads, reaching 0.4-1.2m in height. Leaves are
10-20cm long, long-oblong, or lanceolate, with bases circular to
shallowly cordate and finely wavy margins. Flowers set themselves on
stems in whorls at intervals. Bloom time: May-October.
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