Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Cyperus entrerianus
FAMILY
Cyperaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
This umbrella sedge was first reported in the United States in 1990, when it was described as a potential invasive weed. Subsequently, its dispersal and invasion of natural plant communities in the southeastern US has been documented. Read more in Carter, Baker, & Morris, 2009.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cyperus entrerianus
FAMILY
Cyperaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Cyperus entrerianus
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 23 (2002)
Cyperus entrerianus
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Cyperus entrerianus
COMMON NAME:
Deep-rooted Sedge, Woodrush Flatsedge
To see larger pictures, click or hover over the thumbnails.
)
Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org bug_1117064
Month Unknown
Here seen competing with cogongrass.
)
Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org bug_1117097
Month Unknown
Large more-or-less loose clumps, tenacious base deeply set in the substrate, per Cyperus entrerianus: A Little Known Aggressive Sedge in the Southeastern United States (Carter & Bryson, 1996).
)
Richard Carter, Valdosta State University, Bugwood.org bug_1451012
Month Unknown
5-11 rays to 13cm long, each terminated by a dense ~ capitate spike, per Cyperus entrerianus: A Little Known Aggressive Sedge in the Southeastern United States (Carter & Bryson, 1996).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Cyperus entrerianus
FAMILY
Cyperaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cyperus entrerianus
FAMILY
Cyperaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Cyperus entrerianus
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 23
Cyperus entrerianus
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Cyperus entrerianus
421
Grass, Sedge, or Rush
Perennial
Habitat: Bottomland hardwood forests, coastal grasslands, marshes, vacant lots, disturbed areas, per Weakley's Flora
Non-native: temperate South America
Common in GA Coastal Plain (rare elsewhere in GA-NC-SC)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
This plant may be causing problems in natural areas outside its native range, according to authorities such as:
LEAVES:
Simple - lowermost reduced & scalelike, grading to 5dm long
Basal
RHIZOMES? STOLONS?
Rhizomes short, stout (plants in clumps)
FLOWER:
Summer/Fall
1 stamen
Superior ovary
Bisexual
Inflorescence is terminal
FRUIT:
Summer/Fall
Brown
Nutlet
TO LEARN MORE about this plant, look it up in a good book!
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".