Oat-grass (Arrhenatherum elatius), Parsnip (Pastinaca sativa). Barren Brome (Anisanthus sterilis), Soft Brome (Bromus mollis) and Wall Barley (Hordeum murinum). Crow Garlic (Allium vineale) found along the Centre Road, Wanstead Flats verges has a very strong population here. Grey Sedge (Carex divulsa) is another plant that seems to turn up on verges and not elsewhere. Perhaps the most interesting of the roadside verge plants is the Buckshorn Plantain (Plantago coronopus), essentially a sub-maritime plant in Essex. Buckshorn Plaintain is found on Wanstead and Leyton Flats, but is abundant on the verge and central reservation of the Whipps Cross Road. Curiously it has been known in the Forest for over two hundred years. Richard Warner recorded is thus 'On dry gravelly land. Found in open parts of the Forest, by the roadside: not very common'. It may well be one plant that has benefited from the increased use of salt on roads in winter. A list of plants from the Bury Road verges is given in Table 9. Disturbed Ground Disturbed ground has occurred in the Forest for a variety of reasons. In the 19th century enclosures that were made and the ground brought into cultivation must have initially been a very good habitat for the weeds of disturbed ground. Such enclosures are no longer permissible, but disturbed ground still appears every so often in the Forest. In the last few years road construction and associated projects have left much disturbed ground. Examples are the embankment adjacent to the North Circular Road south of Walthamstow Forest and the cut and cover tunnel over Bell Common, near Epping. Another source of disturbed ground has been the laying of pipelines in the Forest. In recent years gas mains or water mains have been laid on the verges of the Wake Road, from Goldings Hill to the Wake Arms roundabout and across Leyton Flats, leaving much disturbed ground in their wake. The drought years have also left their mark on the Forest's waste site flora. Much of Lords Bushes was cleared of its dead and dying trees, leaving a large area of disturbed ground which was readily colonised by numerous weed species exploiting the nutrients released by burning. Many much smaller sites are also to be found - places where rubbish or rubble has been dumped, old bonfire sites, sites where vehicle tyres have disturbed the surface or where, for one reason or another, it has been necessary to dig the ground. A list of disturbed ground plants is given in Table 10. Introduced Plants Due to the close proximity of urban gardens to many parts of the southern Forest, there is an ever-increasing number of alien plants recorded in the Forest. Casual introductions into ponds account for a few of these species. No introduction, however well-intentioned, can be condoned. The problems that can arise with species such as Japanese Knotweed (Reynouhia japonica) or the Aquatic Stonecrop (Crassula helmsii) could have disastrous effects on the native flora. A list of recently collected records of introduced plants is given in Table 11. References Adams. J. L. (1084) The Flora of the M25 Site in Epping Forest. Lon. Nat. No. 63. p. 27-33. Baker. C. A., Moxey. P. A. and Oxford, P M. (1978) Woodland Continuity and Change in Epping Forest. Field Studies 4 p. 645-669 Blunden. J. & Turner, G. (1985) Critical Countryside. B.B.C, p. 51. Buxton. E. N. (1911) Epping Forest (Eighth Edition) London. Christy. R. M (1924) The Common Polypody in Essex: Why is it decreasing. Essex Naturalist Vol XX p. 287-292. Colombo. E. (19871 Survey of a Group of Ponds in Epping Forest. Lon. Nat. No. 67 p. 47-68. Elliott. F. W. (1924) The Existing Trees and Shrubs of Epping Forest Essex Naturalist Vol. XX p. 377-387. Epping Forest Survey (1944) Report on the Survey of the Cuckoo Pits Area. 1942-44. Lon. Nat. No. 24 p. 39-55. Ferris. P. R. (1980) The Flora of Southern Epping Forest - Part 1 Wanstead Park. Lon Nat. No. 59 p. 8-21. Ferris. P. R. (1981) The Flora of Southern Epping Forest - Part 2 Wanstead Flats and Bush Wood. Lon. Nat. No. 60 p. 6-20. Ferris. P. R. (1982) The Flora of Southern Epping Forest - Part 3 Leyton Flats and Bush Wood North. Lon. Nat, No. 61 p. 16-29. Ferris. P R. (1983) The Flora of Southern Epping Forest - Part 4 Gilberts Slade. Lon. Nat. No. 62 p. 11 -25. Fisher. W R (1887) Forest of Essex. London. Freeman. J (1862) The Stratford Flora, London. Gibson. G. S. (1862) The Flora of Essex. London. Hanson. M W. (1983) Lords Bushes- the history and ecology of an Epping Forest woodland. Essex Naturalist (N.S.) No. 7 p. 17-44 Hanson. M. W. (1990) Essex Elm. Essex Naturalist (N.S.) No. 10 p. 31-39. Herbarium: Passmore Edwards Museum. Jermyn, S T. (1974) The Flora of Essex. ENT Kent, D. H. and Lousely, J. E. (1951-1957) A Handlist of the Plants of the London Area. Lon. Nat. No. 30-36. Lloyd, E. G. (1978) The Trees and Shrubs of Epping Forest. Epping Forest District Council Museum Service. Mountford, J. O (n.d.) Manuscript list of the Plants of Epping Forest, (EFCC), Payne, R. M, (1960) The Ferns of Epping Forest. Lon. Nat. No. 39 p.25-31. Rackham. O. (1978) In Corke. D. (Ed) Epping Forest - the natural aspect? Essex Naturalist (N.S.) No. 2. 80