Dig deeper at SERNEC, a consortium of southeastern herbaria.

C. brevifolius is always less than 1' tall, often < 6", connected via horizontal rhizomes. The inflorescence is a dense head, which is pale green. C. brevifolioides (which is apparently not native in the U.S.) also has long rhizomes, but its longest floral bract sticks out horizontally or is generally reflexed (vs. erect in C. brevifolius). Read more at Vascular Plants of North Carolina.

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Kyllinga brevifolia   FAMILY Cyperaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 030-01-001:

Cyperus brevifolius   FAMILY Cyperaceae

COMMON NAME:
Perennial Greenhead Sedge, Greenhead Flatsedge

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Cyperus brevifolius   FAMILY Cyperaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Kyllinga brevifolia   FAMILY Cyperaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 030-01-001:
Cyperus brevifolius   FAMILY Cyperaceae