?Sonchus asper (L.)Hill x oleraceus L.
34
Weed in potatoes, Three-cornered Field, by Fen Rd. Bassingbourn, 324.449, PD Sell 91/210, 15.8.1991, CGE.
45
A putative hybrid... was recorded by Lewin from Cambridge, CGE, Flora,1964; the specimen has not been found.
