round-leaved sundew - ROM2004_1276_6


round-leaved sundew

Geography: Canada, Ontario
Date: Acquired by the Museum in 1995 AD
    • Attributes
    • Objects
    • Taxonomy
    • KingdomPlantae
    • PhylumMagnoliophyta
    • ClassMagnoliopsida
    • OrderCaryophyllales
    • FamilyDroseraceae
    • GenusDrosera
    • SpecificEpithetrotundifolia
Object number: ROMBOT_IM_12733
Credit Line: Mary Ferguson, FPSA
Not on view
DescriptionThis spectacular image illustrates the final moments of this damselfly’s existence. All types of insects including tiny ants, large dragonflies, damselflies, and butterflies are attracted to the glistening fluid produced by the sundew. Although the fluid resembles water droplets that the insects could consume, it is a trap that lures them to their death. Carnivorous plants are often found in nutrient poor habitats. They have evolved specialized leaves that capture insects and digest their proteins as a nutrient supplement. There are several different kinds of carnivorous plants including pitcher plants, Venus flytraps, bladderworts and sundews. The round-leaved sundew, Drosera rotundifolia grows in acidic lakeshores, conifer swamps, and sphagnum peat bogs. Like all Drosera it has glands on the leaf hairs that secrete a sticky acidic fluid. When an insect settles on the leaf it sticks to the hairs, stimulating them to bend slowly toward the centre of the leaf, encircling the insect and pressing its body against the leaf surface. The acidic fluid breaks down the insect’s body and its nutrients are absorbed by the leaf.
Image Collection
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