Sonchus asper (L.)Hill including records for the following variants:
var. glandulosus ?author
var. inermis Bisch.
First record: Ray, 1660
Sonchus asper laciniatus & non laciniatus Prickly Sow-thistle. Ray,1660,158(115); Ray,1670:289.
Sonchus asper Officinarum Martyn,1727,21.
Sonchus oleraeus g S. asper laciniatus d S. asper non laciniatus Relhan,1785; Relhan,1802;1820.
Cultivated and waste ground. Common throughout the county. Bab.1860,143.
There are also 584 records for S. asper (L.)Hill in Recorder, [R].
24
Steeple Morden; WWN. Bab.MS.Fl.455.
Tadlow. Bab.MS.Fl.455.
25
Cuxton; WWN. Bab.MS.Fl.455.
Eltesley; WWN. Bab.MS.Fl.455.
Gamlingay. Bab.MS.Fl.455; Gamlingay greensand, CEM.ann.
Nr Haley Wood; WWN. Bab.MS.Fl.455; Disused railway track, Hayley Wood, 295.535, SM Peglar, 25.7.1972, det. PD Sell CGE.
26
Graveley; WWN. Bab.MS.Fl.455.
Papworth, both; WWN. Bab.MS.Fl.455.
34
Disturbed side of Fen Rd, Bassingbourn, 329.449, PD Sell 66/123, 2.9.1966, det. L Boulos 1961, CGE; Weed in potatoes, Three-cornered Field by Fen Rd. Bassingbourn, 324.449, PD Sell 91/209, 15.8.1991, CGE.
Croydon. Bab.MS.Fl.455.
Melbourn, n.d., Gregor,ann.
Royston &c. Bab.MS.Fl.455.
35
Bourn; WWN. Bab.MS.Fl.455.
Caldecot; WWN. Bab.MS.Fl.455.
Caxton; WWN. Bab.MS.Fl.455.
Comberton; WWN. Bab.MS.Fl.455.
Eversden; WWN. Bab.MS.Fl.455.
Kingston; WWN. Bab.MS.Fl.455.
Long Stow; WWN. Bab.MS.Fl.455.
Toft; WWN. Bab.MS.Fl.455.
Wimpole. Bab.MS.Fl.455.
36
Birds Pastures; WWN. Bab.MS.Fl.455.
Childerley; WWN. Bab.MS.Fl.455.
Dry Drayton; WWN. Bab.MS.Fl.455.
Fen Drayton. Bab.MS.Fl.455.
Elsworth; WWN. Bab.MS.Fl.455.
38
Chatteris, AF.cat.
39
Benwick, AF.cat.
Doddington. Bab.MS.Fl.455.
44
Fowlmere, O 18, APD Jones, 1940.
Foxton; WWN. Bab.MS.Fl.455.
Near Hinxton; WWN. Bab.MS.Fl.455.
45
Cambridge, JS Henslow, 16.9.1824, det. L Boulos 1961, CGE; Bab.MS.Fl.455.
var. inermis, Cambridge, RA Lewin, 1941, CGE, Flora,1964. spec. not found.
Downing College, Cambridge, RA L(ewin), 9.8.1941, det. L Boulos 1961, CGE.
Plant Breeding Institute, Huntingdon Rd, EF Warburg, 1940.
St John's College, sloping stonework N of Bridge of Sighs, J Rishbeth, 1940.
var. glandulosus, Side of Storey's Way, Cambridge, AJ Crosfield, 18.8.1918, det. L Boulos 1961, CGE; Fence-side, Storey's Way, Cambridge, RA L(ewin), 2.8.1941, det. L Boulos 1961, CGE.
University Farm, RA L(ewin), 2.8.1941, det. L Boulos 1961, CGE; Field, University Farm, RA L(ewin), 13.8.1941, det. L Boulos 1961, CGE.
Barton; WWN. Bab.MS.Fl.455.
Coton, (as S. oleraceus) JS Henslow, 9.9.1827, det. L Boulos 1961, CGE.
Madingley. Bab.MS.Fl.455.
Shelford, wall, J Rishbeth, 1945.
46
Girton. Bab.MS.Fl.455.
Histon. Bab.MS.Fl.455.
Horningsey. Bab.MS.Fl.455.
Long Stanton. Bab.MS.Fl.455.
47
Roadside, Mitchell Hill Common, H 20, AC Trueblood, 1940.
Sutton. Bab.MS.Fl.455.
48
Rushland, AF.cat.
54
Hildersham. Bab.MS.Fl.455.
55
Balsham. Bab.MS.Fl.455.
Fulbourn. Bab.MS.Fl.455; wall, J Rishbeth, 1945.
Qui road. Bab.MS.Fl.455.
Six mile Bottom. Bab.MS.Fl.455.
Wilbraham. Bab.MS.Fl.455.
56
Bottisham, S Hailstone, 1845, YRK:725; HJW Cat; (In the last Field beyond Tonbridge Hall near Bottisham by the Foot path, 1845.) SH Cat. - brackets added 1845+.
Old railway cutting, Devil's Ditch, 57-65-, 10Km card, 1952; Devil's Ditch, between A.11 and Reach, Cttee Walk, 6.1973; Path, Devil's Ditch, between Reach and old railway, in section covered by scrub, AC Leslie, 10.10.1981; Devil's Ditch bottom, just SE of old railway, AC Leslie, 4.6.1982.
57
Stuntney; WWN. Bab.MS.Fl.455.
Upware. Bab.MS.Fl.455.
58
Ely. Bab.MS.Fl.455; wall, J Rishbeth, 1945; Roadside, Ely to Chettisham, EF Warburg, 1940.
64
Shudy Camps. Bab.MS.Fl.455.
65
Brinkley. Bab.MS.Fl.455.
Devil's Ditch, between B.1061 and Camois Hall, AC Leslie, 1981.
Stetchworth. Bab.MS.Fl.455.
66
Chippenham. Bab.MS.Fl.455.
On Devil's Ditch, just SE of Cambridge Gap, AC Leslie, 10.10.1981.
40
Sonch ole g asper Linn. By sides of ditches. Skrim.MS.
Wisbech. Bab.MS.Fl.455.
