description Round-leaved Sundew Overview
The round-leaved sundew, Drosera rotundifolia, is a small carnivorous perennial found in nutrient-poor bogs, fens, and wet heaths across much of the Northern Hemisphere. Its rounded leaves bear reddish glandular hairs tipped with adhesive mucilage that traps small invertebrates, allowing the plant to absorb nutrients unavailable from acidic soils. It produces slender flowering stalks with small white or pinkish flowers, usually during summer.
insights Ranking position
Round-leaved Sundew ranks #4 of 341 in the Wildflower ranking, behind Showy Lady's Slipper, ahead of Pink Lady's Slipper.
help Round-leaved Sundew FAQ
How does the round-leaved sundew catch insects?
Drosera rotundifolia has leaf hairs tipped with sticky mucilage that traps small insects. The leaf and surrounding tentacles slowly bend toward the prey, allowing digestive enzymes to release nutrients.
Why does round-leaved sundew eat insects?
It commonly grows in acidic bogs where usable nitrogen and other soil nutrients are scarce. Capturing insects supplements its nutrition, while photosynthesis still supplies its energy.
Where does Drosera rotundifolia grow naturally?
The species occurs across northern parts of Europe, Asia, and North America, especially in bogs, fens, and wet heaths. It often grows among sphagnum moss in open, sunny conditions.
Can round-leaved sundew be grown in ordinary potting soil?
Ordinary fertilized compost can damage or kill this nutrient-adapted bog plant. Cultivators typically use nutrient-poor acidic media and rainwater or distilled water rather than mineral-rich tap water.
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