alpine-bistort

alpine bistort

noun
See under bistort ( def 2 ).
Dictionary.com Unabridged

bistort

[bis-tawrt]
noun
1.
Also called snakeweed. a European plant, Polygonum bistorta, of the buckwheat family, having a twisted root, which is sometimes used as an astringent.
2.
any of several related plants, as P. viviparum (alpine bistort)

Origin:
1570–80; < Medieval Latin bistorta twice twisted. See bis1, tort

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
bistort (ˈbɪstɔːt)
 
n
1.  snakeroot, snakeweed, Also called: Easter-ledges a Eurasian polygonaceous plant, Polygonum bistorta, having leaf stipules fused to form a tube around the stem and a spike of small pink flowers
2.  Also called: snakeroot a related plant, Polygonum bistortoides, of W North America, with oval clusters of pink or white flowers
3.  any of several other plants of the genus Polygonum
 
[C16: from French bistorte, from Latin bis twice + tortus from torquēre to twist]

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