Schoenoplectus pungens

(Mittelhauser, Glenn. “Three-Square Bulrush.” Go Botany, 

Common Name(s) Common Three-Square
Scientific Name Schoenoplectus pungens
Family Perennial herb
Location/Vegetative Zone
Flowering Period Late spring- Summer
Identifying Characteristics Average height: about 4.9 feet. Needs full exposure to the sun and cannot adapt to shade


  • The soil that it grows in must be wet and flooded
  • The stem is a dark green color.
  • Has blue flowers.
  • Has brown seeds.
  • Has rough and dense foliage.
  • The stem is shaped like a v or triangular.

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