Rumex acetosella
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| Rumex acetosella | |
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Scientific classification 
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| Unrecognized taxon (fix): | Rumex |
| Species: | Template:Taxonomy/RumexR. acetosella
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| Binomial name | |
| Template:Taxonomy/RumexRumex acetosella | |
| Synonyms[1] | |
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Acetosella vulgaris (W.D.J. Koch) Fourr. | |
Rumex acetosella, commonly known as sheep's sorrel, red sorrel, sour weed and field sorrel, is a species of flowering plant in the buckwheat family Polygonaceae. The plant and its subspecies are common perennial weeds. It has green arrowhead-shaped leaves and red-tinted deeply ridged stems, and it sprouts from an aggressive and spreading rhizome. The flowers emerge from a tall, upright stem. Female flowers are maroon in color.
Description
A perennial herb that has a slender and reddish upright stem that is branched at the top, reaching a height of 18 inches (0.5 meters). The arrow-shaped leaves are small, slightly longer than 1 inch (3 cm), and smooth with a pair of horizontal lobes at the base. It blooms during March to November, when yellowish-green (male) or reddish (female) flowers develop on separate plants at the apex of the stem, which develop into the red fruits (achenes).
Distribution and habitat
The plant is native to Eurasia and the British Isles,[2] but it has been introduced to most of the rest of the Northern Hemisphere. It is commonly found on acidic, sandy soils in heaths and grassland.[2] It is often one of the first species to take hold in disturbed areas, such as abandoned mining sites, especially if the soil is acidic. Livestock will graze on the plant, but it is not very nutritious and is toxic in large amounts because of oxalates. The American copper or small copper butterfly depends on it for food, although its larvae can consume some related plants.
Rumex acetosella is widely considered to be a hard-to-control noxious weed due to its spreading rhizome. Blueberry farmers are familiar with the weed because it thrives in the same conditions under which blueberries are cultivated.
Culinary uses
There are several uses of sheep sorrel in the preparation of food including a garnish, a tart flavoring agent, a salad green, and a curdling agent for milk in cheese-making.[citation needed] The leaves have a lemony, tangy or rhubarb-like tart flavor. It is also known as sheep shower in parts of the country[which?].
References
- ↑ "Acetosella vulgaris". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 16 December 2017.
- ↑ 2.0 2.1 Stace, C. A. (2010). New Flora of the British Isles (Third ed.). Cambridge, U.K.: Cambridge University Press. p. 450. ISBN 9780521707725.
- Weed of the Week - United States Department of Agriculture Forest Service
External links
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- Invasive plant species
- Flora of Europe
- Medicinal plants
- Rumex
- Flora of Asia
- Plants described in 1753
- Taxa named by Carl Linnaeus