The leaf edges of the lesser pond-sedge (Carex acutiformis) are so sharp that you can easily injure yourself on them. For this reason, the plant, which belongs to the Cyperaceae family, is also known in German as Scharfkantige Segge (sharp-edged sedge).
The lesser pond-sedge is perennial, its flowering period can last from April to May. It spreads by seeds and runners and can also overgrow large areas. Depending on the location and soil, it grows between 40 and 120 centimetres high.
Its natural distribution area includes most of Europe. In Asia, it reaches as far as the Caucasus and Siberia. Natural occurrences also exist in some African countries (source).
As its common name implies, the lesser pond sedge is a marsh plant. It colonises river courses, pond margins, lake margins, wet meadows and bogs.
Carex acutiformis is a dioecious plant. Male spikes grow on it, which are somewhat thicker and sit on top. The slimmer female spikes are underneath.
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