Native & Naturalized Plants of the Carolinas & Georgia


3061

Grass, Sedge, or Rush
Perennial
Monoecious

Native to the Carolinas & Georgia

Documented growing wild in GA NC SC

Rare

Look for it in blackwater swamp forests, often growing on cypress knees, cypress bases, or fallen logs (often at or near water level), river sloughs, per Weakley's Flora

map
To see a detailed map, click here

 

...Wet

LEAVES:
Simple
Basal or alternate, 3-ranked

RHIZOMES? STOLONS?
Densely cespitose [tufted, clumping], with short rhizomes

FLOWER:
Spring/Summer
Unisexual
Perianth absent
3 stamens
Superior ovary
Inflorescences: spikes w both staminate & pistillate flowers (staminate above)

FRUIT:
Spring/Summer
Brownish
Nutlet

 

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



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

WEAKLEY'S FLORA (11/30/12):
Carex decomposita   FAMILY Cyperaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Carex decomposita   FAMILY Cyperaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 030-17-013:
Carex decomposita   FAMILY Cyperaceae

 

COMMON NAME:
Cypress-knee Sedge, Epiphytic Sedge


Click or hover over the thumbnails to see larger pictures.

image of Carex decomposita, Cypress-knee Sedge, Epiphytic Sedge

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_cade6_001_lvd

        

image of Carex decomposita, Cypress-knee Sedge, Epiphytic Sedge

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_cade6_003_lvd

        

The branched or twice-compound inflorescence is a key ID character, per Guide to the Wildflowers of SC.

image of Carex decomposita, Cypress-knee Sedge, Epiphytic Sedge

Alicia Jackson    agj_3843

June    Brunswick County    NC

image of Carex decomposita, Cypress-knee Sedge, Epiphytic Sedge

Alicia Jackson    agj_3848_sheath

June    Brunswick County    NC

image of Carex decomposita, Cypress-knee Sedge, Epiphytic Sedge

Alicia Jackson    agj_7259_

June    Brunswick County    NC

Large, dense tussocks with long flowering stems (culms) that arch outward, per Vascular Plants of North Carolina.

image of Carex decomposita, Cypress-knee Sedge, Epiphytic Sedge

Alicia Jackson    agj_7276_

June    Brunswick County    NC

The branched inflorescence is distinctive, once learned, per Vascular Plants of North Carolina.