Also 3 swines gres, 5 swynegrece, swynesgarce, 6 swyne gyrs; 7 swine-grasse. [Cf. local G. schweingras.] Knotgrass, Polygonum aviculare; also, locally, ragwort, Senecio Jacobæa. (Cf. SWINE’S CRESS.)
12[?]. Herbarium, in MS. Bodl. 130, lf. 42 b. Swines gres [in another hand blod[w]ert .i. suines gres].
c. 1450. Alphita (Anecd. Oxon.) 38/1. Centinodium, populus uel popluus, longam habet hastam et gracilem et folia longa. angl. swynegrece uel cattesgres. Ibid., 104/1. Lingua passeris, poligonia, proserpinata, centinodium idem. angl. swynesgarce.
1538. Turner, Libellus, Poligonon.… Hanc uulgus appellat swyne gyrs, & knotgyrs.
1597. Gerarde, Herbal, II. clxi. 452. Knot grasse … is giuen vnto swine … when they are sicke … whereupon the countrie people do call it Swines grasse, and Swines skir [? swineskirs = swine’s cress].
a. 1697. Aubrey’s MS. (Royal Soc.), 12 (Britten & Holl.). Raggewort (Jacobæa) vulgò Swine-grasse growes … plentifully in good ground from Notts to the Bishopricke of Durham.
a. 1722. Lisle, Husb. (1757), 331. Poligona, knot-grass, swine’s-grass, or blood-wort … is very pernicious to sheep.
