Minute duckweed is a tiny aquatic plant that typically forms green carpets across still water surfaces. This free-floating species possesses minuscule, flat, oval fronds that cluster in groups, creating a lush, diminutive mat. Minute duckweed thrives in nutrient-rich freshwaters, reproducing rapidly and contributing to the ecosystem by providing food for aquatic life and shelter for microorganisms.
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Perennial
Lifespan
Herb
Plant Type
Summer
Growth Season
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Distribution
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Care Guide
Images of Minute duckweed
Distribution of Minute duckweed
Distribution Map
Minute duckweed is native to the northern parts of the American continent, with a presence extending across various regions of Asia and Europe as well. The species has also found its way to some areas in Africa and the Caribbean, where its growth is sometimes considered to have potential ecological effects. While minute duckweed may become dominant locally, detailed impacts on ecosystems are not fully determined.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Floating in quiet waters with moderate to high levels of nutrients
Quickly Identify Minute duckweed
1
Tiny green oval fronds under 0.1 inches (2.5 mm) cluster at water surface.
2
Enclosed inflorescence with two male and one female flowers, less than 0.06 inches (1.5 mm).
3
Small utricle fruit, 0.7 to 1 mm long (0.03 to 0.04 inches), released in late summer.
4
Ovate to obovate leaves, 1 to 4 mm long (0.04 to 0.16 inches), smooth texture.
5
Distinct papules at node and convex flat surface on both sides of leaves.
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Water:
Native to calm freshwater habitats, minute duckweed thrives in consistently moist conditions and has a high water content in its small fronds. It requires weekly watering and is adaptable to fluctuating water levels, making it suitable for studies on aquatic plant resilience.
Fertilize:
Minute duckweed requires a balanced liquid fertilizer monthly during growing seasons for optimal growth. Adjust quantities based on plant size and seasonal dormancy. Over-fertilization can cause algae problems, so observe closely. Always dilute according to label instructions to protect minute duckweed's ecosystem.
Pruning:
Minute duckweed is characterized by small, floating leaves. Regular pruning in early to late spring helps control growth, reduce nutrient depletion, and improve water quality. Focus on removing older, yellowing parts while avoiding over-pruning to maintain its ecological role.
Propagation:
Minute duckweed is a small aquatic plant that reproduces mainly through vegetative fragmentation, forming dense colonies. It disperses via water currents or animals, though controlled propagation can be achieved by redistributing fragments. Minute duckweed thrives with sufficient light and nutrients.
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