Coulters Dean

Site of Special Scientific Interest · 50.9664, -0.9371

Condition (Natural England)

Unfavourable Recovering (1)
UnitFeatureConditionArea (ha)Assessed
SU747190 Unfavourable Recovering 2.21 2014-09-30

Geology & landscape

Rock Type: Chalk

Description

Area, 1.91 hectares 2.69 ac Description Coulters Dean is a small area of chalk grassland on a west facing fold in the South Downs escarpment and is of considerable scientific interest because a its flora has been recorded at intervals since 1914; b its flora and invertebrate fauna are very rich compared with that of the generally north facing escarpment of the South Downs. The flora includes remarkably large populations of horseshoe vetch Hippocrepis comosa, rampion Phyteuma orbiculare, clustered bellflower Campanula glomerata and other species characteristic of ancient chalk grassland. At least 11 species of orchids occur. There is a diverse invertebrate especially butterfly fauna for the size of the site, including a population of the nationally rare Duke of Burgundy fritillary Hamearis lucina.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
Duke of Burgundy Hamearis lucina VU butterfly riodinidae
clustered bellflower Campanula glomerata VU herb campanulaceae
horseshoe vetch Hippocrepis comosa VU herb fabaceae
round headed rampion Phyteuma orbiculare LC herb campanulaceae