Cyperus echinatus
globe flat sedge, globe flatsedge, globe-flatsedge
Family
Cyperaceae
Leaf Arrangement
alternate
Leaf Type
simple
Leaf Shape
linear
Growth Form
graminoid
Flower Color
inconspicuous
Flower Month
June - November
Height (meters)
0.2 - 1.0
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
native
Lifespan
perennial
Growing Season
Warm season
Wetland Class
FAC
Prairie Coefficient of Conservatism
5
Field Characters
Spikes spherical, spikelets reddish brown at maturity. Similar to C. croceus which has spikes that are less dense with fewer spikelets.
Cultural Information
Freshly harvested seeds are often dormant. High germination percentages result from 10-33 weeks of after-ripening at 50 F (10 C). Germination was found to increase in seed stored at room temperature for up to 13 months. The seeds entered secondary dormancy after this period. Some seed still germinated after 8 years (Justice 1957).
Habitat
Dry woods and fields.