Street Heath is a 12.5 hectare

Hectare

The hectare is a metric unit of area defined as 10,000 square metres , and primarily used in the measurement of land. In 1795, when the metric system was introduced, the are was defined as being 100 square metres and the hectare was thus 100 ares or 1/100 km2...

 (31.0 acre) biological Site of Special Scientific Interest 4 km east of Glastonbury

Glastonbury

Glastonbury is a small town in Somerset, England, situated at a dry point on the low lying Somerset Levels, south of Bristol. The town, which is in the Mendip district, had a population of 8,784 in the 2001 census...

 in Somerset

Somerset

The ceremonial and non-metropolitan county of Somerset in South West England borders Bristol and Gloucestershire to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. It is partly bounded to the north and west by the Bristol Channel and the estuary of the...

, notified in 1966.

Street Heath is a Nature reserve

Nature reserve

A nature reserve is a protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservation and to provide special opportunities for study or research...

, managed by Somerset Wildlife Trust

Somerset Wildlife Trust

Somerset Wildlife Trust is a wildlife trust covering the county of Somerset, England.The trust, which was established in 1964, aims to safeguard the county's wildlife and wild places for this and future generations and manages almost 80 nature reserves. Examples include Fyne Court, Westhay Moor,...

, which has outstanding examples of communities which were once common on the Somerset Levels

Somerset Levels

The Somerset Levels, or the Somerset Levels and Moors as they are less commonly but more correctly known, is a sparsely populated coastal plain and wetland area of central Somerset, South West England, between the Quantock and Mendip Hills...

. The vegetation consists of wet and dry heath, species-rich bog and carr woodland, with transitions between all these habitats. Rare ferns present include Marsh Fern (Thelypteris palustris) and Royal Fern (Osmunda regalis). Old peat

Peat

Peat is an accumulation of partially decayed vegetation matter or histosol. Peat forms in wetland bogs, moors, muskegs, pocosins, mires, and peat swamp forests. Peat is harvested as an important source of fuel in certain parts of the world...

 workings and rhynes have a wetland community which includes Bulrush

Typha

Typha is a genus of about eleven species of monocotyledonous flowering plants in the family Typhaceae. The genus has a largely Northern Hemisphere distribution, but is essentially cosmopolitan, being found in a variety of wetland habitats...

 (Typha latifolia), Yellow Flag Iris

Iris (plant)

Iris is a genus of 260-300species of flowering plants with showy flowers. It takes its name from the Greek word for a rainbow, referring to the wide variety of flower colors found among the many species...

 (pseudacorus), Cyperus-like Sedge (Carex pseudocyperus) and Lesser Bur-reed (Sparganium minimum). Insects recorded include 33 species of butterflies, 200 moths

Moths

Moths may refer to:* Gustav Moths , German rower* The Moths!, an English indie rock band* MOTHS, members of the Memorable Order of Tin Hats...

 and 12 grasshopper

Grasshopper

The grasshopper is an insect of the suborder Caelifera in the order Orthoptera. To distinguish it from bush crickets or katydids, it is sometimes referred to as the short-horned grasshopper...

s and cricket

Cricket (insect)

Crickets, family Gryllidae , are insects somewhat related to grasshoppers, and more closely related to katydids or bush crickets . They have somewhat flattened bodies and long antennae. There are about 900 species of crickets...

s, with several notable rarities. Birds breeding in the carr woodland include the local Willow Tit

Willow Tit

The Willow Tit is a passerine bird in the tit family Paridae. It is a widespread and common resident breeder throughout temperate and subarctic Europe and northern Asia. It is more of a conifer specialist than the closely related Marsh Tit, which explains it breeding much further north...