Polygonaceae FAMILY

Persicaria maculosa

Edibility

2/5

Medicinal

2/5

Safety & Hazards

Although no specific mention has been made for this species, there have been reports that some members of this genus can cause photosensitivity in susceptible people. Many species also contain oxalic acid (the distinctive lemony flavour of sorrel) - whilst not toxic this substance can bind up other minerals making them unavailable to the body and leading to mineral deficiency. Having said that, a number of common foods such as sorrel and rhubarb contain oxalic acid and the leaves of most members of this genus are nutritious and beneficial to eat in moderate quantities. Cooking the leaves will reduce their content of oxalic acid. 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[ 238 Title Encyclopaedia of Herbs and their Uses. Publication Author Bown. D. Publisher Dorling Kindersley, London. Year 1995 ISBN 0-7513-020-31 Description A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant. ].

Botanical Description

Persicaria maculosa is an erect to procumbent, annual plant with stems that can be branched or simple[ it can grow from 20 - 120cm tall[ 266 Title Flora of China Publication Author Website http://flora.huh.harvard.edu/china/ Publisher Missouri Botanical Garden Press; St. Louis. Year 1994 ISBN Description An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available. , 1093 Title Invasive Species Compendium Publication Author Website http://www.cabi.org Publisher Year 0 ISBN Description An immense resource - in depth information on over 900 species of invasive plants (it also has information on animals, fungi etc). ]. The plant is harvested from the wild for local use as a food, medicine and source of materials. Persicaria maculosa is an annual plant that can be very competitive with crop plants, particularly in moist areas, and has an ability to spread rapidly once introduced to an area. The economic impact of the plant in agricultural production is sufficient for various governments to declare this weed as a noxious pest, and it is also listed as invasive in many areas, especially the Ameriicas[ 1093 Title Invasive Species Compendium Publication Author Website http://www.cabi.org Publisher Year 0 ISBN Description An immense resource - in depth information on over 900 species of invasive plants (it also has information on animals, fungi etc). ].

Habitat & Origin

Origintemperate

Native RangeWidespread in the Temperate regions of the northern hemisphere, including Britain.

HabitatDamp shady places[ 5 Title Food for Free. Publication Author Mabey. R. Publisher Collins Year 1974 ISBN 0-00-219060-5 Description Edible wild plants found in Britain. Fairly comprehensive, very few pictures and rather optimistic on the desirability of some of the plants. ]. A common weed of cultivated land, avoiding shade[ 1 Title RHS Dictionary of Plants plus Supplement. 1956 Publication Author F. Chittendon. Publisher Oxford University Press Year 1951 ISBN - Description Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]). ]. Weedy, moist semiwaste to cultivated area[ 270 Title Flora of N. America Publication Author Website http://flora.huh.harvard.edu/fna/ Publisher Year 0 ISBN Description An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses. ]. Streamsides, wet areas, field margins; at elevations from 100 - 1,800 metres[ 266 Title Flora of China Publication Author Website http://flora.huh.harvard.edu/china/ Publisher Missouri Botanical Garden Press; St. Louis. Year 1994 ISBN Description An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available. ].