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Bistorta officinalis. Bistorta officinalis (synonym Persicaria bistorta), known as bistort, common bistort, European bistort, or meadow bistort, is a species of flowering plant in the dock family Polygonaceae native to Europe and northern and western Asia. [1] Other common names include snakeroot, snake-root, snakeweed, and Easter-ledges.
Bistorta vacciniifolia, the whortleberry-leaved knotweed, is a species of flowering plant in the family Polygonaceae, native to Tibet and the Himalaya. [1] Well-suited for clay soils, as its synonym Persicaria vacciniifolia it has gained the Royal Horticultural Society 's Award of Garden Merit .
Bistorta amplexicaulis (synonym Persicaria amplexicaulis), the red bistort [2] or mountain fleece, is a species of flowering plant in the buckwheat family Polygonaceae, native to China, the Himalayas, and Pakistan.
Persicaria is a genus of herbaceous flowering plants in the knotweed family, Polygonaceae. Plants of the genus are known commonly as knotweeds [ 2 ] : 436 or smartweeds . [ 3 ] It has a cosmopolitan distribution , with species occurring nearly worldwide.
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Bistorta bistortoides plants generally grow to 10–51 centimetres (4–20 inches) tall. [2] Individuals growing above 2,250 metres (7,380 feet) are smaller, seldom reaching more than 30 cm (12 in) in height. The leaves are leathery and 2.5–10 cm (1–4 in) long, [2] being mostly basal on the stem.
Bistorta is a genus of flowering plants in the family Polygonaceae. As of February 2019 [update] about 40 species are accepted. It has been supported as a separate clade by molecular phylogenetic analysis. [ 2 ]
Persicaria amphibia produces a thick stem from its rhizome. The stem may creep, float, or grow erect, rooting at stem nodes that come in contact with moist substrate. Stems are known to reach 3 meters (10 feet) long in aquatic individuals. The stems are ribbed and may be hairless to quite hairy in texture. [4]