Flora of Ashdown Forest - Botanical Society of the British Isles

203Carex riparia. Greater pond~sedge.Stream side, Twyford (398.313), 1994, DB; one big patch at the east end of the mainpond on Ridge Road (448.329)' 1994, PW.The big fat heads are very distinctive and instantly separate it from C. acutiformis.It is locally frequent in Sussex, the spreading rhizomes often forming extensive stands.3 It occurs in shallow water or sometimes on drier land, often in nutrient-rich conditions, andtolerates fluctuating water levels.It is widespread in lowland south-east England, but is rare and usually coastal elsewhere.4 5 Widespread in Europe, western Asia and North Africa.Carex pseudocyperus. Cyperus sedge.Tetrads 33A and 42T (Hall 1980).Winter-wet pond by Cold harbour Manor (400.326), 1993, TR (possibly Hall's tetrad33A record'!; pond, Braadstone Farm (43.33), 1987, PD; pond by Ridge Road3 -+-I------LI-(447.328), 1993, TR & NM; pond in Furnace Wood (477.260), 1995, TR, probably the42T record. In all three cases it occurs on clayey soils in semi-shaded, seasonally waterlogged4 5or wet conditions.In Sussex it seems most frequent on the Tunbridge Wells Sandstones and on days,but does occur elsewhere. It occurs quite widely in a range of water and substrateconditions in southern lowland Britain where it is locally frequent. Fairlywidespread in Europe, temperate Asia, North Africa and North America.Carex rostrata. Bottle sedge.Newbridge, Miss K. Pickard (Wolley-Dod 1937). Not refound and possibly an error for C. vesicaria which still growsat Newbridge, though it could have occurred there. It always occurs in wet, peaty bogs or swamps.It is widespread in northern and western Britain and uncommon in the south-east. Mainly in northern Europe,Asia and North America.Carex vesicaria. Bladder-sedge.Tetrad 43W (Hall 1980).Very local in wet woodlands at Horncastle, Pippingford Park, Newbridge, ChuckHatch, etc., possibly in the more base-rich flushes and mainly on inorganic soils.Locally distributed in Sussex. Scattered throughout Britain but decreasing in3 --++-----'" England (Rich & Woodruff 1996). Widespread in Europe, temperate Asia and NorthAmerica.4 5Carex pendula. Pendulous sedge.Common on the Forest (Hall 1980).Widespread around the Forest edges, where it occurs in damp, clayey flushes inwoodland and by ponds. It is also grown in gardens and occasionally escapes.Widespread in the Weald, especially on clays and weakly acidic soils which areseasonally wet. It is widespread in lowland southern Britain and rarer elsewhere.Western, central and southern Europe north to Scotland. Also in North Africa.Carex sylvatica. Wood-sedge.Frequent on the west and east sides of the Forest (Hall 1980).Locally frequent around the Forest edges and in Broadstone Warren. It is mostfrequent on the more clayey soils, and often occurs on banks where it is not covered inleaf litter.Common and widespread in Sussex and Britain. Widespread in Europe, temperateAsia and North Africa.