What is "s coronopus"

Swine \Swine\, n. sing. & pl. [OE. swin, AS. sw[=i]n; akin to OFries. & OS. swin, D. zwijn, G. schwein, OHG. sw[=i]n, Icel. sv[=i]n, Sw. svin, Dan. sviin, Goth. swein; originally a diminutive corresponding to E. sow. See Sow, n.] (Zo["o]l.) Any animal of the hog kind, especially one of the domestical species. Swine secrete a large amount of subcutaneous fat, which, when extracted, is known as lard. The male is specifically called boar, the female, sow, and the young, pig. See Hog. ``A great herd of swine.''
--Mark v. 11.

Swine grass (Bot.), knotgrass ( Polygonum aviculare); -- so called because eaten by swine.

Swine oat (Bot.), a kind of oat sometimes grown for swine.

Swine's cress (Bot.), a species of cress of the genus Senebiera ( S. Coronopus).

Swine's head, a dolt; a blockhead. [Obs.]
--Chaucer.

Swine thistle (Bot.), the sow thistle.