First record: Relhan, 1785
Thlaspi arvense Broad-podded Mithridate-mustard. Bastard, or Penny-cress. Treacle-mustard. Relhan, 1785.
Penny Cress. Smooth Mithridate Mustard. Relhan,1802;1820.
Cambridgeshire, Ch.Abbott, Fl.Selecta 1:58, LTN.
These are the only records since Relhan's time. The species is curiously rare in the county, and then more of a casual than a colonist. West,1898,250.
Babington gives no record later than that of Relhan, but we can now give 6 more records....Evans,1911,218.
There are also 62 records for T. arvense in Recorder, [R].
24
Numerous plants on waste ground at N corner of chalk pit, Morden Grange Plantation, 297.404, AC Leslie, 5.8.2001.
25
Gamlingay, CE Moss, 24.7.1912, CGE; Gamlingay greensand, CEM.ann.
Edge of ploughed field, by Gamlingay meadow, 223.510, PD Sell & SM Peglar, QSD 56, 3.8.1972, CGE.
26
Rsv, Caxton Gibbet, DR Donald, 1979.
29
29Y, GMS Easy, 1978.
34
Margin of potato field & track, between Bassingbourn & Abington Pigotts, 320.439, PD Sell 80/224, 10.8.1980, CGE.
Bean field, A.10, 369.431, PD Sell 88/461 & JG Murrell, frequent, 5.10.1988, CGE.
Highfield Farm, Litlington, new shelter belt, G Crompton, 1978.
Rsv opposite Manor Farm, Shingay, 308.470, PD Sell 66/13, 14.6.1966, CGE.
35P, R Nedderman, & C Turner, 1980.
35
Disturbed Rsv, near Lords Bridge Station, 394.543, PD Sell 67/302, 5.6.1967, CGE.
Old North Road station, AH Evans & PGM Rhodes, 1905, CBSC.
36
Fen Drayton gravel pit, GMS Easy, 1974.
37
Near Sutton Meadlands, N. of Earith, SM Walters, 6.1950, CGE.
38
Chatteris by Nightlayer Mile, bank of the 20ft, 22.5.1895, AF.ann.
Chatteris, Evans,1911,218.
39
Benwick to Angle Bridge, FH Perring, 31.5.1957.
Roadside arable, near Benwick, Vc 29, FH Perring, 31.5.1957, CGE.
45
Weed in Chaucer Rd, Cambridge, SM Walters, 3.7.1951, CGE.
Coton footpath, RS Winteringham, 1945-6, CGE.
Cultivated ground, by Cambridge to Coton FP, 434.587, PD Sell 61/807, 18.11.1961, CGE.
Waste ground, Madingley road, Cambridge, PW Richards, 14.6.1948.
Dense colony on partly bare soil by newly made-up road, Newmarket Rd by Marshall's Airport, Teversham, 492.593, PF Yeo 25.9.1955, CGE.
Railway embankment, Dernford Fen, IH Burkill, 17.7.1896, CGE; Burkill, 1896, AH ann.Bab; Railway embankment, Dernford Fen, 1896; IH Burkill. West,1898,250.
Grantchester, weed at edge of rape crop by Bourn Bridge, 432.548, SM Walters, 15.5.1990.
Shelford Common, in large quantity, EA George, 21.10.1939, CGE; Cultivated ground, Gt Shelford, EA George, 20.5.1940, CGE.
46
Chesterton pits, CE Moss, 6.7.1914, CGE.
Waterbeach Fen, a little way below the great Gull. Relhan,1785;1802;1820; A little way below the great Gull in Waterbeach Fen; Relhan, Bab.1860,23 & Bab.MS.Fl.75; Waterbeach, Evans,1911,218.
47
Aldreth Bridge, Evans,1911,218.
48
Near Manea, frequent on margin of dyke, PD Sell 82/26, RD I'Ons & F Prince, 13.5.1982, conf. TCG Rich (named T. perfoliatum in error by PD Sell), CGE.
Hiam's Farm, Mepal, 3.6.1895, AF.ann.
49
Cultivated land, Hook near Wimblington, 430.935, GMB Smith, 29.5.1969.
Cranmoor Lots, Manea, GMB Smith, & JO Mountford, 1972.
54
In the cricket-field, Abington. 1882. AS Eve. Bab.ann.23; Abington Park. Evans,1911,218; AH Evans. West,1898,250.
Bartlow-Linton, old railway, 563.462, GMS Easy, 8.1972.
Pampisford, CE Moss, 4.10.1912, CGE; A whole field of T. arvense near Pampisford, AH Evans, 1912. Evans,1913,230.
55
Balsham, 578.507, filled pond, GMS Easy, 8.1972.
...T. arvense, but was puzzled ...both by the undue size...The size, I suppose is due to the circumstances of growth, as it was found in what was almost a muck-heap. I found it in a field by the Newmarket & London Road,
mile from the Six Mile Bottom Station, on the way thence towards the Fleam Dyke.' Rev. J Venn in litt. 10.6.1879. [letter pasted in] Bab.ann.23.Six-mile-bottom (a very wet season), Rev J Venn, 7.6.1879, CGE; Six Mile Bottom Evans,1911,218.
Rsv, Quy roundabout, DR Donald, 1978.
56
Bottisham Lode, Evans,1911,218.
On cinder track, old railway north of Devil's Ditch, 580.655, Rodney Hill, 30.6.1971.
57
Roads betwen Stretham and Sutton, JSL Gilmour, 1930.
Field at Stretham, TG Tutin, 1930.
A.142, Stuntney-Ely, GMB Smith, & JO Mountford, 1973,
Roadside, Dimock's Cote bridge, RJ Pankhurst, 1973.
Arable, N of Upware, 538.707, CJ Cadbury, 21.4.1990.
64
64C, GMS Easy, 1978.
65
65E, GMS Easy, 1978.
66
Devils Ditch, Ap.[19]05, AH ann.Bab; Devil's Dyke, Evans,1911,218.
66Z, GMS Easy, 1970.
76
76E, GMS Easy, 1970.
30
Arable field, Nutsgrove, Thorney, 328.053, JO Mountford, 21.6.1970.
40
...in a field between Wisb. & Elm by ye lanes. Skrim.MS.
Wasteground, Wisbech, 46-09-, GMS Easy, 12.7.1993.
40T, GMS Easy, 1971.
41
Tydd, 452.177, sandy strip margin, R Payne, 1984.
Wasteground, Wisbech, 46-10-, 459.105, GMS Easy, 12.7.1993.
50
50C, GMS Easy, 1974.
