Ladle Hill

Site of Special Scientific Interest · 51.3092, -1.3157

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
SU477568 Favourable 10.5 2012-07-26

Geology & landscape

Rock Type: Chalk

Description

Area, 10.37 hectares Description, Ladle Hill occupies the steep north and west facing slopes and the ramparts of a hill fort on the crown of the escarpment. The Site of Special Scientific Interest supports some of the floristically richest chalk grassland on the northern escarpment of the Hampshire Chalk plateau. The earthwork, in particular, is very rich in species, with up to 38/m 2 recorded, including an exceptionally good range of downland grasses and large populations of such rare or local plants as field fleawort Senecio integrifolius, chalk milkwort Polygala calcarea, hairy rock cress Arabis hirsuta, fragrant orchid Gymnadenia conopsea and pyramidal orchid Anacamptis pyramidalis. The escarpment slopes, though species rich, support fewer species than the earthwork, but some, notably clustered bellflower Campanula glomerata, only occur there. The site is of exceptional importance for its population of the rare July flowering form of the burnt tip orchid Neotinea ustulata. This form is morphologically distinct, has a peculiar flowering period and survives now on only about six sites in Britain. Though not at present recognised as being taxonomically a separate species, there is a strong case for protecting all remaining sites.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
pyramidal orchid Anacamptis pyramidalis LC herb orchidaceae
hairy rockcress Arabis hirsuta VU herb brassicaceae
clustered bellflower Campanula glomerata VU herb campanulaceae
fragrant orchid Gymnadenia conopsea NT herb orchidaceae
burnt orchid Neotinea ustulata EN herb orchidaceae
chalk milkwort Polygala calcarea VU herb polygalaceae
field fleawort Senecio integrifolius Not listed in GB list herb asteraceae