1. Not having a floral envelope or perianth

Antonym: chlamydeous

• burdensome
• burdensomeness
• burdock
• bureau
• bureau de change
• Bureau of Alcohol Tobacco and Firearms
• Bureau of Customs
• Bureau of Diplomatic Security
• Bureau of Engraving and Printing
• Bureau of Intelligence and Research
• Bureau of Justice Assistance
• Bureau of Justice Statistics
• Bureau of the Census
• bureaucracy
• bureaucrat
• bureaucratic
• bureaucratic procedure
• bureaucratically
• bureaucratism
• bureaucratize
• buret
• burette
• burg
• burgage
• burgee