Great tassel stonewort Tolypella prolifera

Status Red - Endangered & Critically Endangered
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Colour
Habitat

A simple water plant with whorls of narrow leaf-like branches along its length.

It is fairly robust with short ‘leaflets’ as well as long fronds in each whorl.

Distribution

It can be found at about six sites, scattered across southern England.

Habitat

Shallow, slowly moving water such as ditches and rivers in chalk or limestone areas.

Status

Classified as Endangered.

Key threats

Smothering by stronger water plants is probably its main threat, although another is nutrient enrichment of the water from fertilisers.