Grass ID is challenging, and we don't recognize this as any one particular species from the photos, though it does appear to be one of the typical turfgrass species used in Maryland (as opposed to one of the common grassy weeds). Are these tufts of grass growing in part of a larger lawn, where they look distinctly different from the rest of the grass? Turf-type tall fescue (TTTF) is the predominant lawn grass used in Maryland, though in warmer counties, Zoysia is popular as well. Additives in mixed TTTF seed or sod include a bit of Kentucky bluegrass and perennial ryegrass.

You can try using either of the turfgrass ID keys linked below. Each publication includes a guide to what the different structures you need to examine look like; you might need a magnifying glass to see them clearly enough.

• Turfgrass Identification - Ohio State (PDF)
• Cool-season Turfgrass ID - Penn State
  This key won't include zoysia, since that's a warm-season grass, but zoysia probably hasn't greened-up yet for the season (even in the warmer MD counties), so it's unlikely to be the species pictured.

Miri