Original: Asparagus officinalis is widely known simply as "asparagus", and may be confused with unrelated plant species also known as "asparagus", such as Ornithogalum pyrenaicum known as "Prussian asparagus" for its edible shoots.
Simplified: One of these is often grown to be pretty, the "asparagus fern", Asparagus setaceus (although it is not a real fern). The best known plant in this group is Asparagus officinalis, which is an important food plant.