First record: WW Newbould 1856
Cambs, an escape, Hb. T Talbot, 1867.
24
TL24, R Payne, 19.7.1991, [R].
34
Near Mill, Shepreth; GHB. Bab.ann.49.
Melbourn, 6.8.1913 & 26.6.1920, Gregor,ann.
Ditch bank by roadside near Meldreth Stocks, 370.462, PD Sell 56/44, 13.9.1956, CGE.
Kneesworth chalk pit, PD Sell, 1973.
Small colony along FP to N of main road through Royston, 349.408, AC Leslie, 23.9.2001.
35
Madingley, 35Z, MJ Howe, 1989, [R].
44
Plentiful in a lane leading to the fen at Sawston! in 1856; WW Newbould, Bab.1860,49 & Bab.MS.Fl.159.
In the village of Duxford; WW Newbould. Bab.1860,49 & Bab.MS.Fl.159.
Rubbish tip, 1
miles S of Thriplow, 445.447, GMS Easy, 4.8.1970.Thriplow, by pub wall, 437.466, A Arbon, 1993, [R].
45
New Museum ground, Cambridge, A Shrubbs, 9.1878, det. DE Coombe 1953, CGE.
Old Botanic Garden, 1878, HD.ann.
Little St Mary's churchyard, 1878, HD.ann.
Cambridge, naturalised, FR Tennant, 7.1888, CGE.
Grantchester, garden weed, CEM.ann.
Garden weed near Jesus Ditch, CEM.ann.
Common as a weed in Botanic Garden, DH Valentine, 1939.
Waste ground, Portugal Place, F Day, 1939.
Introduced into Madingley Wood by DE Coombe, 1950, [See DEC, Ph D. thesis.]; now abundant, DE Coombe, 28.4.1990.
Garden by the Botany School, Downing St, where it has been naturalised for at least 30 years, 451.582, PD Sell 82/113, 1982, CGE.
Between Botany School and School of Agriculture, FH Perring, 3.7.1953, CGE.
In shady garden, Chesterton Rd, DG Soden, 7.7.1965, CGE.
Cherry Hinton, 484.574, GMS Easy, 1970.
Gogs tip, 485.538, GMS Easy, 1970.
Duce's tip, 469.588, GMS Easy, 1970.
Madingley, 45E, MJ Howe, 1989, [R].
Paradise, Cambridge, 44-57-, C Newell, 1993-2000, [R].
46
....Chesterton, 1859; Mr W Walton. Bab.ann.49.
By the road to Chesterton; Mr W Walton, MA. Bab.1860,49 & Bab.MS.Fl.159.
Girton, H Belcher & E Swale, 1970-1989, [R].
Milton gravel pit, 477.623, GMS Easy, 1969-1976.
Milton Army Camp, 463.616, GMS Easy, 1970-1976.
Waterbeach gravel pits, 483.691-2, GMS Easy, 1981.
54
Chalk pit near Linton, 557.464, GMS Easy, 1974.
56
Gravel pit near Chittering, [500.690] ND Simpson, 9.8.1947, PVT.
Quy Hall, well naturalized, DE Coombe, 1949–1960.
66
Rsv, Cheveley, GMS Easy, 1969.
41
Common, woodyard tip, Wisbech, 457.113, GMS Easy, 8.9.1985, PVT; Wisbech, 457.112, GMS Easy, 1990, [R]; Wasteground, Crab Marsh Road, Wisbech, 457.115, 'still present', GMS Easy, 2001.
