[See WORT.] a. The common knot-grass (Polygonum aviculare). b. pl. Lindley’s name for the N.O. Illecebraceæ.

1

1845.  Lindley, Veg. Kingd. (1853), 499. Order … Illecebraceæ … Knotworts.

2

1864.  Prior, Plant-n., Knot-grass, or Knot-wort, the centinode, from its trailing jointed stems and grass-like leaves.

3