Fauna
Plant · GBIF taxon 2716719

Straw-colored Flatsedge

Cyperus strigosus

Also known as False Nutsedge

Straw-colored flatsedge anchors damp soils along wetlands, ditches, and cultivated ground, spreading via short rhizomes with bulbous corms. Its radiating umbels of golden, linear spikelets mature in late summer, providing nutrient-rich seeds for waterfowl and small songbirds. Triangular stems and long leafy bracts make it an adaptable pioneer plant that quickly colonizes newly exposed mudflats.

PerennialWetlandGrass-like
Straw-colored Flatsedge reference
Licensed reference(c) Michael J. Papay, some rights reserved (CC BY), uploaded by Michael J. Papay · cc-by
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & prey
  • Autotrophic (photosynthetic)
Predators
  • Mallard
  • Canada Goose
  • Muskrat
ThreatsHerbicides in agricultural lands, wetland drainage, and aggressive invasive plants
HabitatsWet meadows, pond margins, ditches, marshes, and disturbed agricultural fields
Life spanPerennial (typically 3–5 years)
Classification
  1. OrderPoales
  2. FamilyCyperaceae
  3. GenusCyperus
  4. SpeciesCyperus strigosus
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Stem Inspection: Roll the stem between your fingers to feel the sharp triangular shape characteristic of true sedges.
  • Floral Viewing: Examine the flattened, golden-brown spikelets in late summer when the seeds reach full maturity.
Related species
Help improve the field guideSomething wrong?

Report a name, category, or profile issue for review.

Checking your Fauna account…