knotroot
English
Etymology
From
knot
+
root
.
Noun
knotroot
(
uncountable
)
Collinsonia canadensis
, a
perennial
medicinal
herb
in the
mint
family
,
Lamiaceae
.
Synonyms:
horsebalm
,
stoneroot
Stachys affinis
, a perennial
herbaceous
plant, also in the mint family.
Synonym:
crosne