Tapertip Flatsedge

(Cyperus acuminatus)

Tapertip Flatsedge (Cyperus acuminatus)

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Climate Requirements

Precipitation 19" - 49"
High Temp. 86°F - 96°F
Low Temp. 17°F - 38°F

Summary

Cyperus acuminatus, commonly referred to as tapertip flatsedge or pale umbrella-sedge, is an annual herb native to a variety of wetland habitats including riverbanks, marshes, and wet meadows across North America. It thrives in moist to wet soils and is often found in ephemeral wet areas, from large rivers to roadside ditches. Cyperus acuminatus typically grows up to 16 inches tall and is characterized by its slender, paper-thin stems and distinctive spherical inflorescences. The inflorescences bear several spikelets, each containing flowers that produce oval-shaped achene fruits.

Tapertip flatsedge is valued for its role in soil stabilization and as a component of wetland plant communities, contributing to biodiversity. It is not commonly used in traditional garden settings but can be an interesting addition to rain gardens or naturalized wetland areas. This plant prefers full sun to part shade and requires consistently moist to wet soil conditions. It is relatively low maintenance but may require management to prevent it from spreading too aggressively in favorable conditions.CC BY-SA 4.0

Plant Description

  • Plant Type: Grass
  • Height: 1-2 feet
  • Width: 1-3 feet
  • Growth Rate: Rapid
  • Flower Color: N/A
  • Flowering Season: Spring, Summer, Fall
  • Leaf Retention: Deciduous, Semi-deciduous

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Drainage: Medium, Slow

Common Uses

Erosion Control, Low Maintenance, Water Garden

Natural Habitat

Native to a variety of wetland habitats including riverbanks, marshes, and wet meadows

Other Names

Common Names: Taperleaf Flatsedge, Short-Pointed Cyperus, Taper-Leaved Flatsedge, Taper-Tip Umbrella Sedge

Scientific Names: Cyperus acuminatus, Cyperus acuminatus var. cyrtolepis, Cyperus cyrtolepis, Cyperus cyrtolepis var. caepitosus, Cyperus cyrtolepis var. denticarinatus, Cyperus cyrtolepis var. glaucescens, Cyperus rufescens var. denticarinatus

GBIF Accepted Name: Cyperus acuminatus