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Barnyard Grass: no ligule hair or auricles (naked in the barnyard)
Shattercane: membranous ligule with no hairs or auricles (shatter the wall)
Large crabgrass: membranous ligule covered in hairs (crab claws)
Fall Panicum: hairy membrane with no fringe or other hairs
Green Foxtail: hair ligule with margin fringe and no hairs on blade
Giant Foxtail: hairy ligule fringe and blade
Yellow foxtail: hairy ligule with hairs on blade
Quackgrass: membrane ligule with auricles (beak)