groundcover

As nouns the difference between shrub and groundcover

is that shrub is a woody plant smaller than a tree, and usually with several stems from the same base or shrub can be a liquor composed of vegetable acid, fruit juice (especially lemon), sugar, sometimes vinegar, and a small amount of spirit as a preservative modern shrub is usually non-alcoholic, but in earlier times it was often mixed with a substantial amount of spirit such as brandy or rum, thus making it a liqueur while groundcover is .

As a verb shrub

is (obsolete) to lop; to prune.

As nouns the difference between groundcover and liriope

is that groundcover is while liriope is any of the plants of the genus used as a groundcover in landscaping and gardening.