OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Cyperus retrofractus   FAMILY Cyperaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cyperus retrofractus   FAMILY Cyperaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Cyperus retrofractus

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 23 (2002)

Cyperus retrofractus

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)

Cyperus retrofractus

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 030-01-033:

Cyperus dipsaciformis   FAMILY Cyperaceae

SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Cyperus retrofractus var. dipsaciformis

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Cyperus dipsaciformis

 

COMMON NAME:
Rough Flatsedge


         To see larger pictures, click or hover over the thumbnails.

image of Cyperus retrofractus, Rough Flatsedge

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_cyre4_001_pvd

        

image of Cyperus retrofractus, Rough Flatsedge

JK Marlow    jkm230706_4218

July    Pickens County    SC

Glassy Mountain Heritage Preserve

Rays glabrous or rarely w a few hairs just below spike; longest ray shorter than longest bract, per Weakley's Flora (2023).

image of Cyperus retrofractus, Rough Flatsedge

JK Marlow    jkm230706_4218b

July    Pickens County    SC

Glassy Mountain Heritage Preserve

Spikes strongly narrowed to the base; all but the uppermost spikelets strongly reflexed, per Weakley's Flora (2023).

image of Cyperus retrofractus, Rough Flatsedge

JK Marlow    jkm230706_4221

July    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Cyperus retrofractus, Rough Flatsedge

JK Marlow    jkm230905_5189

September    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Cyperus retrofractus, Rough Flatsedge

JK Marlow    jkm230905_5207

September    Pickens County    SC

Glassy Mountain Heritage Preserve

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Cyperus retrofractus   FAMILY Cyperaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cyperus retrofractus   FAMILY Cyperaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Cyperus retrofractus

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 23
Cyperus retrofractus

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Cyperus retrofractus

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 030-01-033:
Cyperus dipsaciformis   FAMILY Cyperaceae

SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Cyperus retrofractus var. dipsaciformis

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Cyperus dipsaciformis

 

Find by SCIENTIFIC NAME:

4453

Grass, Sedge, or Rush
Perennial

Habitat: Dry sandy or rocky woodlands and fields, per Weakley's Flora

Native to the Carolinas & Georgia

Common (uncommon in GA) (uncommon in NC Coastal Plain)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple

RHIZOMES? STOLONS?
Cespitose [growing in dense tufts, clumping]

FLOWER:
Summer/Fall
Superior ovary
Bisexual

FRUIT:
Summer/Fall
Nutlet

 

TO LEARN MORE about this plant, look it up in a good book!



 


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