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Round-leaved Sundew

(Drosera rotundifolia)

The carnivorous lifestyle of the Round-leaved Sundew makes this heathland plant a fascinating species. The round leaves have sticky, 'dew'-covered tendrils that tempt in unsuspecting insects as prey.

Sundew ©Mark Hamblin/2020VISION
Round-leaved Sundew
©Ben Hall/2020VISION
Round-leaved Sundew

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Overview

A tiny, slender plant, Round-leaved Sundews stand out from the crowd – the acidic habitats it lives in don’t provide enough nutrients, so it has evolved a carnivorous way of life to supplement its diet.

Hair-like tendrils on each reddish leaf are tipped with glistening droplets that attract passing insects. But this ‘dew’ is very sticky, trapping the insect; the sundew’s tendrils detect the presence of its stuck prey and curl inwards to engulf it. Eventually, the whole leaf wraps around the insect which is digested.

Key Facts

  • The greeny-red leaves of the Round-leaved Sundew are covered in red ‘hairs’ and arranged at the base of the plant in a rosette. The white or pink flowers appear in summertime at the top of hairless, red stems. The Round-leaved Sundew can be distinguished from the Oblong-leaved Sundew by the rounder shape of its leaves.
  • The ‘dew’ of Round-leaved Sundews once formed the basis of anti-ageing potions as people believed it was a source of youth and virility – the sundew itself glistening and moist even in the most fierce sun. Later on, the plant was also used as a love charm because of its power to lure and trap helpless insects.
  • Height: up to 20cm

Status

Common.

Seasonality

June to August

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