FloraFinder.org
Home   About Us   Want to Help?   FAQ  
Searching   Image Use Biblio

Cyperus strigosus L.

Cyperus hansenii Britton

Cyperus stenolepis Torr.

Cyperus strigosus L. var. capitatus Boeckeler

Cyperus strigosus L. var. multiflorus Geise

Cyperus strigosus L. var. robustior Britton

Cyperus strigosus L. var. stenolepis (Torr.) Kük.

Straw-colored flatsedge, false nutsedge

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassLiliopsidaMonocots (plants with a single seed leaf); includes the lily family
SubclassCommelinidaeDayflowers and spiderworts, and several others
OrderCyperalesFlowering plants including grasses
FamilyCyperaceaeSedge family
GenusCyperusFrom an ancient Greek word meaning “sedge”
SpeciesstrigosusStrigose, that is, covered with straight, flat-lying hairs

About plant names...

Straw-colored flatsedge is native to the United States, Cuba, and Canada. It prefers cultivated or disturbed soils such as fields and roadsides, pond shores and ditches. It prefers soils that are at least seasonally wet. It pops up in my lawn, growing about three times faster than the sur­rounding grass.

Plants: 4½-28" (12-70 cm) in height, with a stem (culm) that is triangular in cross-section. The culm is topped by inflorescences, branching clusters of linear spikes, like straw-colored bottle brushes. The clusters are 2-5" (5-12 cm) across. 3-8 leafy bracts 2-10" (5-25 cm) long extend from the base of the inflorescence, resem­bling grass blades like the other leaves. The base of the plant is hard, edible bulb, with a purplish sheath.

Leaves: Grasslike, with flat or with rolled edges, 4-18" (10-45 cm) × ¹/₃₂-¼" (1-8 mm) wide.

Flowers: Each floral spike is ¾-2" (1.9-5 cm) long, and contains 30-80 flattened spikes, each ¹/₃₂-¹/₁₆" (1.5-2.4 mm) long.

Fruits: The floral spikes atop the plant are the fruits and flowers. Each fruit (a “tine” of the brush) is a seed ¹/₃₂-¹/₁₆" (1.5-2.4 mm) long, surrounded by scales. Fruits are tri­angular in cross-section.

Edibility: Tubers are edible, raw or cooked, said variously to taste like Vick’s VapoRub or “pleasantly nutty,” becoming milder-tasting with drying.

Medical: Folk medicine remedies based on this species are numerous, but they have not been confirmed with formal studies.

Online References:

Cyperus strigosus at Illinois Wildflowers

Cyperus strigosus at Minnesota Wildflowers

Cyperus strigosus on Wildflowers of the United States

Cyperus strigosus on gobotany.nativeplanttrust.org

Cyperus strigosus on Discover Life

Cyperus strigosus on Southeastern Flora, the Southeastern U.S. Plant Identification Resource

Cyperus strigosus on eFloras

References:

Arsenault, Matt; Mittelhauser, Glen H.; Cameron, Don; Dibble, Alison C.; Haines, Arthur; Rooney, Sally C.; and Weber, Jill E., Sedges of Maine: A Field Guide to Cyperaceae, University of Maine Press, 2013, p. 546

Cyperus strigosus (straw-colored flatsedge, umbrella sedge, false nutsedge)

8/28/2013 · Tom and Susan’s, Pepperell, MA
≈ 6 × 4" (16 × 10 cm)

Cyperus strigosus (straw-colored flatsedge, umbrella sedge, false nutsedge)

8/28/2013 · Tom and Susan’s, Pepperell, MA
≈ 12 × 19" (31 × 47 cm)

Cyperus strigosus description by Thomas H. Kent, last updated 25 May 2020.

© FloraFinder.org. All rights reserved.


 

Cyperus strigosus (straw-colored flatsedge, umbrella sedge, false nutsedge)

8/28/2013 · Tom and Susan’s, Pepperell, MA
≈ 7 × 10" (16 × 25 cm)

Cyperus strigosus (straw-colored flatsedge, umbrella sedge, false nutsedge)

8/28/2013 · Tom and Susan’s, Pepperell, MA
≈ 2 × 2" (5.5 × 5.3 cm)

Cyperus strigosus (straw-colored flatsedge, umbrella sedge, false nutsedge)

8/28/2013 · Tom and Susan’s, Pepperell, MA
≈ 6 × 3½" (14 × 9.6 cm)

Cyperus strigosus (straw-colored flatsedge, umbrella sedge, false nutsedge)

8/28/2013 · Tom and Susan’s, Pepperell, MA
≈ 11 × 7" (28 × 18 cm)

Cyperus strigosus (straw-colored flatsedge, umbrella sedge, false nutsedge)

8/28/2013 · Tom and Susan’s, Pepperell, MA
≈ 10 × 15" (25 × 37 cm)

Range:

About this map...