[SPIRE sb.1 Cf. SPEAR-GRASS.] † a. = SPEAR-GRASS 1, SPEARWORT 3. Obs. b. One or other of various reeds or sedges. Cf. SPEAR-GRASS 2. Now dial.
1626. Bacon, Sylva, § 565. Where Alleyes are close Gravelled, the Earth putteth forth, the first yeare, Knot-grasse and after Spire-grasse.
1629. Drayner Confirmed (1647), A iv b. There are many watry plashes, and much rotten Spire-grasse in it.
1851. Sternberg, Northampt. Dial., Spire-grass, a tall species of sedge, growing on fenny land.
1851. Meredith, Flower of Ruins, Poems 33. The little harebell leans On the spire-grass that it queens, With bonnet blue.