
1) Grass 2) Paspalum distichum
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https://www.crosswordclues.com/clue/knotgrass

• (n.) The dog grass. See under Dog. • (n.) a common weed with jointed stems (Polygonum aviculare); knotweed.
Found on
http://thinkexist.com/dictionary/meaning/knotgrass/

<botany> A common weed with jointed stems (Polygonum aviculare); knotweed. ... The dog grass. See Dog. ... An infusion of Polygonum aviculare was once supposed to have the effect of stopping the growth of an animal, and hence it was called, as by Shakespeare, 'hindering knotgrass.' 'We want a boy extremely for this function, Kept under for a ...
Found on
http://www.encyclo.co.uk/local/20973
Knot'grass` noun (Botany) (a) a common weed with jointed stems
(Polygonum aviculare) ; knotweed.
(b) The dog grass. See under
Dog . » An infusion of
Polygonum aviculare was once supposed to have the effect of stopping the growth of an animal, and henc...
Found on
http://www.encyclo.co.uk/webster/K/16

Knotgrass (Polygonum aviculare) is an annual herb of the family Polygonaceae, native to Britain, with branched prostrate or erect stems and shortly stalked, alternate, linear to ovate leaves with silvery stipules at their base. The flowers are small, white or pinkish in colour, and grow in clusters in the axils of the upper leaves. The fruit is a t...
Found on
http://www.probertencyclopaedia.com/browse/BK.HTM

[
n] - low-growing weedy grass with spikelets along the leaf stems
Found on
http://www.webdictionary.co.uk/definition.php?query=knotgrass
noun low-growing weedy grass with spikelets along the leaf stems
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.