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Plant
Identification
Three-Square
 Description Management
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Photos
Scirpus
americanus
Three-square is a member of the bulrush family. Three-square is a perennial plant that forms dense colonies from rhizomes and can grow to 4 feet tall. It has few leaves, usually around the base. Stems are triangular in cross-section. Flowers are small spikes near the end of the stems (1 to 2 inches).
Submerged portions of
all aquatic plants provide habitats for many micro and macro
invertebrates. These invertebrates in turn are used as food by
fish and other wildlife species (e.g. amphibians, reptiles, ducks,
etc.). After aquatic plants die, their decomposition by bacteria
and fungi provides food (called "detritus") for many aquatic invertebrates. Seeds are consumed by ducks while geese, muskrats, and nutria consume the rhizomes.
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" indicates Non-Native plants.