1. Erect perennial aquatic herb of Europe and North America having submerged spongy leaves and pendulous racemes of blue flowers above the water
   - Lobelia dortmanna

Type of: lobelia

• semiskilled
• semisoft
• semisolid
• semisweet
• semisynthetic
• Semite
• semiterrestrial
• Semitic
• Semitic deity
• Semitic-speaking
• Semitism
• semitone
• semitrailer
• semitrance
• semitransparency
• semitransparent
• semitropic
• semitropical
• semitropics
• semivowel
• semiweekly
• Semnopithecus entellus
• semolina
• Sempatch
• sempervivum