1. North American perennial herb having small autumn-blooming purple or pink or white flowers; widely naturalized in Europe
   - New York aster, Aster novi-belgii

Derived forms: Michaelmas daisies

Type of: aster

Encyclopedia: Michaelmas daisy

• biotope
• biotype
• biotypic
• biovular
• bioweapon
• biparous
• bipartisan
• bipartite
• bipartizan
• biped
• bipedal
• bipedalism
• biphenyl
• bipinnate
• bipinnate leaf
• bipinnatifid
• biplane
• biplane flying fish
• bipolar
• bipolar disorder
• bipolarity
• biprism
• biquadrate
• biquadratic
• biquadratic equation