1. Violet-flowered perennial aster of central United States having solitary heads
   - prairie aster

Type of: aster

• protective
• protective coloration
• protective cover
• protective covering
• protective embankment
• protective fold
• protective garment
• protective tariff
• protectively
• protectiveness
• protector
• outstation
• outstay
• outstretch
• outstretched
• outstrip
• outstroke
• outswinger
• outtake
• outthrust
• outturn
• outvie
• outvote
• outwait
• outward