Sedge-like weeds

Season: warm season annual
Stem: fleshy, creeping
Height: up to 12 inches tall
Roots: fibrous, rooting at nodes
Leaf blade: fleshy, alternate, narrow, lanced-shaped
Leaf sheath: soft hairs on upper margin
Flower: blue to purple, 1/4-1/2 inch wide, in open clusters
Propagated by: seeds
Comments: usually found in moist areas, can be very prolific, often spread by birds