A wild species of Trefoil, Trifolium medium; sometimes also applied to a cultivated perennial form of Red Clover.
1789. Trans. Soc. Arts, II. 57. Rib-grass, fitch-grass, cow-grass.
1797. A. Young, Agric. Suffolk, 84. A grass called cow-grass … very similar to clover, only that the stem is solid instead of tubical.
1844. Jrnl. R. Agric. Soc., V. I. 266. Cow-grass and marl-grass are found to be good substitutes.
