1. Marked by or promising bad fortune
   "an ill-starred romance"
   - doomed, ill-fated, ill-omened, unlucky

See also: unfortunate

• genus Bartramia
• genus Basiliscus
• genus Bassariscus
• genus Bassia
• genus Bathyergus
• genus Batis
• genus Batrachoseps
• genus Bauhinia
• genus Beaumontia
• genus Begonia
• genus Belamcanda
• genus Bellis
• genus Bemisia
• genus Bennettitis
• genus Benzoin
• genus Berberis
• genus Bergenia
• genus Beroe
• genus Berteroa
• genus Bertholletia
• genus Bessera
• genus Besseya
• genus Beta
• genus Bettongia
• genus Betula