First record: Mrs Casborne, 1832
Introduced into Botanic Garden, Cambridge, (as squalidus x vulgaris) 1897. cf Rep. Wats.Bot.Exch.Club,1901-2:15(1902).
S. vulgaris x S. squalidus A weed in the Botanic Garden, introduced from Oxford. Evans,1911,230.
There are also 57 records in Recorder, [R].
29
Foot of wall, Wood Yard, Low Cross, Whittlesey, 267.973, JO Mountford, 18.5.1971, var. leiocarpus Druce, det. Kew.
33
Railway verge, Litlington, 318.397, R Payne, 1984.
37
Fen Drayton gravel pit, GMS Easy, 1970.
45
S. erucifolius Cambridge, RH Lock, 8.1899, det. PD Sell, 12.1997, CGE.
Weed in Botanic Garden, Cambridge, (? S.sqalidus x S. vulgaris) AJ Crosfield, 9.1912, CGE.
Junction of Brook's Road & Coldham's Lane, Cambridge, 476.580, PD Sell 61/113, 9.5.1961, CGE.
Cambridge Goods yard, 14.10.1945. DE Coombe, Card Index.
Derelict building site, junction of Station & Hills Road, Cambridge, 457.574, PD Sell 76/193, 29.7.1976, CGE.
Mill Road, Cambridge, H Gilbert-Carter, 9.1941, CGE.
Side of Huntingdon Road, WH Mills, 1949.
Coldham's Lane, just beyond the railway, 1939, EA George.
Side of Trumpington Road, c.
mile from Trumpington, SM Walters, 1949.Trumpington Road, Cambridge, SM Walters, 22.8.1950, CGE.
Trumpington Road S of Bateman Street, Cambridge, PF Yeo, 13.5.1971, det. SM Walters 1972, CGE.
Waste ground, Milton Rd level crossing, Cambridge, in large quantity, SM Walters, 13.5.1950, CGE.
In 8 out of 14 streets, Survey 1998/9, Oswald et al.,2000.
Disturbed roadside between Hauxton & Trumpington, 44-53-, PD Sell 50/39, 30.5.1952, CGE.
Cherry Hinton Quarry, 30.10.1945. DE Coombe, Card Index.
Lime Kiln Hill roadside, Cherry Hinton, 48-55-, PD Sell 50/40, 5.5.1952, CGE.
Waste ground, Stapleford, 47-51-, SM Walters, 9.1956.
46
Chesterton Ballast Pits and ...1939, EA George.
Round Ballast Pits, (plentiful), PD Sell, 14.5.1952.
Milton Road, Cambridge Sewage Farm, 47-61-, PD Sell 50/32, 14.5.1952, CGE.
47
By old runway, between Sutton & Mepal, 445.798, PD Sell 61/589, 17.8.1961, CGE.
54
Linton chalk pit, GMS Easy, 1974.
55
55Q, GMS Easy, 1972.
56
S. ? aquaticus Alington bank, Hb. Mrs Casborne, 1832, det. S. squalidus PD Sell, 12.11.1997, CGE. [Label in Henslow's writing].
56G, GMS Easy, 1973.
57
Disturbed ground by Drainer's Ditch, Wicken Fen, 555.704, O Rackham, 13.5.1961.
57, tetrad I, GMS Easy, 1974.
Barton Square, under trees and on roof, Ely, 57J, RM Payne, 2000-2001.
In 12 out of 16 streets, Ely, 57P, RM Payne, 2001-2002.
58
Wall, Hythe Lane, Ely, 58K, rayless, RM Payne, 4.2001.
Verge, Little Lane, Ely, 58F, rayless, RM Payne, 8.2001.
Wall, Chapel Street, Ely, 58F, RM Payne, 4.2001.
Wasteground in Cromwell Road and Downham Road, Ely, 58F, RM Payne, 8.2001.
Hills Lane, Ely, 58F, RM Payne, 8.2001.
Walls in Precinct and Almonry garden, Lisle Lane, New Barns Road and Willow Walk, Ely, 58K, RM Payne, 2001.
64
64C, GMS Easy, 1973.
65
65E, GMS Easy, 1974.
Rsv. 630.530, AC Leslie, 1978.
One plant on open bank in recently cleared wood, Devil's Ditch, 641.594, AC Leslie & JM Spencer Smith, 13.12.1980.
76
Kennett gravel pit tip, GMS Easy, 1969.
30
Old railway, Thorney, 324.096, R Payne, 1984.
