Cyperus alopecuroides

Common Name: foxtail flatsedge

Family: Cyperaceae

Common Synonyms: none

USDA Hardiness Zone: NA

Growth Habit: Graminoid

Origin: Pantropical

FISC Category: -

FDACS Listed Noxious Weed: No

Introduction Date: 1996

IFAS Assessment:

• North: OK
• Central: OK
• South: OK

Description

Large, perennial, rhizomatous, sedge. Culms triangular and glabrous to 3.5 m tall. Leaves broad to 1.5 m tall, margins serrated and sharp. Inflorescence branched with densely clustered spikes (golden brown) surrounded by broad bracts up to 2 m long. Flowers in summer. Achenes dark brown, sessile, biconvex with 2 stigmas.

Habitat

Wet disturbed sites

Comments

"IFAS notes: ""rarely found in wet, disturbed sites in Hillsborough, Polk, and Hardee counties"""

Control Methods

• Manual:
• Chemical: NA
• Biological: NA

Control Notes

No specific recommendations available, herbaceous plants can generally be treated with foliar application of glyphosate. **Follow herbicide labels: Only herbicides registered for application in water by EPA and FDACS may be applied to weeds growing in or near water.

References

Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford.

IFAS, Center for Aquatic and Invasive Plants. 2013. Foxtail flatsedge. http://plants.ifas.ufl.edu/node/117. Accessed on December 6, 2013.