• Persicaria
• Polygonum
• Fallopia
• Rumex

Persicaria amphibia

Amphibious Bistort Found in both wet, grassy places and dry waste places. Superficially similar to P. maculosa but shape of leaf base is characteristic.

Persicaria maculosa

Redshank Widespread, waste places.

Persicaria lapathifolia

Pale Persicaria Probably more common and widespread than above distribution suggests. Only coming into flower later in the survey period and only recorded when flowering material available.

Polygonum aviculare

Knotgrass Common throughout the city on waste ground and roadside verges.

Fallopia japonica

Japanese Knotweed A long established garden escape. The colony in Sculcoates Cemetery is known to have persisted for over 65 years.

Fallopia convolvulus

Black-bindweed Waste and cultivated places. Certainly more common than above distribution data would suggest. Only flowering plants were accepted but the heart-shaped leaf is probably distinctive enough for safe recording.

Rumex acetosella

Sheep's Sorrel Always associated with railway ballast.

Rumex acetosa

Common Sorrel Usually associated with grassland. Stunted plants may be found in the mown grassland in parks and school fields.

Rumex crispus

Curled Dock Common and widespread. Grassy places including roadside verges.

Rumex conglomeratus

Clustered Dock Damp grassy places, particularly ditch and drain banks.

Rumex obtusifolius

Broad-leaved Dock Abundant in all recorded tetrads. Gardens, verges and waste places.

R Middleton, r.middleton@geo.hull.ac.uk, last updated 14 September 1997