Mercurialis annua

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Mercurialis annua
Light:Full Sun
Moisture:Mesic
Soil pH:5.6-8.4
Cross Pollinated
Height:2'
Blooms:Mid Summer-Mid Fall
Native to:
Edible Rating:PFAF Edibility Rating
Medicinal Rating:PFAF Medicinal Rating
Tea:Yes
Poisonous

Mercurialis annua (common name: annual mercury)

Propagation: Seed - sow spring or autumn in situ.

Cultivation: A common garden weed in Britain, it should need little encouragement. When well suited, it tends to spread itself around too freely for most people's tastes[1]. It dislikes growing in shady positions.

Plants are normally dioecious, though monoecious plants are sometimes found[1]. Male and female plants must normally be grown if seed is required.

Range: Europe, including Britain, from Scandanavia south and east to the Mediterranean. Azores.

Habitat: Waste places[2]. A common weed of cultivated soils, but it avoids acid soils[3].

Edibility: Leaves - cooked[4][1][5][6]. They were at one time quite popular, being used like spinach[1]. The acrid principle is said to be destroyed by thoroughly boiling the leaves[1]. The raw leaves are poisonous[5]. It is probably wise not to eat the leaves of this plant[7].

Medicinal: The whole plant, and especially the juice, is emetic, emollient and purgative. It is used externally to treat women's complaints, ear and eye problems, warts and sores[1][7].

A homeopathic remedy is made from the plant[7]. It is used in the treatment of rheumatism, dropsy, diarrhoea and disorders of the gall bladder and liver[7].

Usage: This species is a potential source of a very good drying oil[8].

Pollinators: Bees, flies, wind

Soil: Can grow in light, medium, and heavy soils.

Flower Type: Dioecious

Known Hazards: The plant is poisonous, but less so than the perennial M. perennis[1][9][5][10].

Links

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Grieve, Margaret. A Modern Herbal. Penguin, 1984.
  2. Clapham, Arthur and Tom Tootin, Edmund Warburg. Flora of the British Isles. Cambridge University Press, 1962.
  3. Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  4. Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
  5. 5.0 5.1 5.2 Freethy, Ron. From Agar to Zenery. The Crowood Press, 1985.
  6. Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  7. 7.0 7.1 7.2 7.3 Launert, Edmund. Edible and Medicinal Plants. Hamlyn, 1981.
  8. Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
  9. Frohne, Dietrich and Hans Pfänder. J. A Colour Atlas of Poisonous Plants. Timber Press, 1984.
  10. Cooper, Marion. Poisonous Plants in Britain and their Effects on Animals and Man. The Stationery Office, 1984.