Texas sedge

Season: annual
Stem: erect, rounded, smooth
Height: up to 20 inches tall
Roots: fibrous
Leaf blade: up to 1/8 inch wide, basal
Seed head: few to many branches, many flattened spikelets, clustered at ends of branches
Seed: weakly triangular, 1/32 inch long, covered with tiny bumps, brownish-gray
Propagated by: seeds
Comments: extremely common, a facultative species growing in all dry and wet soils