Droseraceae
Droseraceae is a family of specialized carnivorous plants that have adapted to thrive in nutrient-poor environments where standard vegetation struggle to survive. This family is characterized by unique trapping mechanisms, most notably the sticky glandular hairs of the sundew genus, which allow them to supplement their diet with nitrogen captured from insect prey.
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Sundew
Drosera L.
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Alice sundew
Drosera aliciae
Cape sundew
Drosera capensis
Climbing sundew
Drosera macrantha
Dionaea
Dionaea
Drosera adelae
Drosera adelae
Drosera beleziana
Drosera beleziana
Drosera binata
Drosera binata
Drosera burmannii
Drosera burmannii
Drosera cistiflora
Drosera cistiflora
Drosera indica
Drosera indica
Drosera peltata
Drosera peltata
Drosera tentaculata
Drosera tentaculata
Great sundew
Drosera anglica
Madagascar sundew
Drosera madagascariensis
Oblong-leaved sundew
Drosera intermedia
Obovate sundew
Drosera obovata
Paradoxical sundew
Drosera paradoxa
Round-leaved sundew
Drosera rotundifolia
Spoon-leaved sundew
Drosera spatulata
Thread-leaved sundew
Drosera filiformis
Three-nerved sundew
Drosera trinervia
Umbellate sundew
Drosera umbellata
Venus flytrap
Dionaea Ellis
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Waterwheel plant
Aldrovanda
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Droseraceae
The global distribution of this family is extensive, covering habitats from temperate bogs to tropical wetlands across almost all continents. They are native to regions with high precipitation and acidic soils, such as sphagnum moss landscapes, where their specific environmental niches remain relatively stable despite the lack of soil nutrients.
From a botanical standpoint, members of the Droseraceae family possess modified foliage that serves both for photosynthesis and as a predatory organ. These leaves are covered in mucilage-secreting glands. When a prey item touches the leaf, it becomes trapped in the viscous secretion, triggering chemical pathways that digest the organism and absorb the essential minerals.
Successful cultivation requires mimicking the plant's natural, nutrient-deficient habitat. It is essential to use a potting medium consisting of high-quality peat moss and silica sand, ensuring no mineral fertilizers are present. The most critical factor for horticultural success is irrigation: only distilled, rainwater, or reverse osmosis water should be used to prevent mineral buildup.
- Maintain constant moisture in the potting medium.
- Provide high levels of light intensity.
- Ensure adequate air circulation to prevent fungal pathogens.
- Avoid over-fertilizing through the roots.
The primary economic value of Droseraceae lies in their ornamental appeal for specialized nurseries and botanical collections. While they are resilient in their specific niches, they can be vulnerable to infestations by aphids or mealybugs in enclosed environments. Proper greenhouse management and sanitation remain the cornerstone of professional plant production for this family.