Bearded stonewort Chara canescens

Status Red - Endangered & Critically Endangered
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Habitat

A simple water plant with whorls of narrow leaf-like branches along its length, and covered with dense spines.

Distribution

It flourishes in several ponds near Peterborough and there is one small colony in the Western Isles.

Habitat

Ponds and pools near the sea in slightly salty water.

Status

Classified as Critically Endangered.

Key threats

Smothering by stronger water plants, particularly invasive aliens, is probably the main threat, but another is from nutrient enrichment of the water from fertilisers.