Medicago minima - Bur Medick
Nationally Scarce, Bur Medick occurs in Cornwall as a tan-bark alien and as such has been recorded at the tannery in Grampound (SW95J, 1983, B.E.M.Garratt) and at Penpol House in Devoran (SW83E, 1973, L.J.Margetts).
French, C.N., Murphy, R.J. & Atkinson, M. 1999. Flora of Cornwall. Wheal Seton Press, Camborne.