1. Orchid of South America and Trinidad having large yellow and reddish-brown flowers; sometimes placed in genus Oncidium
   - Psychopsis papilio

Type of: butterfly orchid

• letterman
• letterpress
• letters
• letters of administration
• letters of marque
• letters patent
• letters testamentary
• letterset printing
• letting
• letting down
• Lettish
• lettre de cachet
• lettuce
• letup
• leu
• Leucadendron
• Leucadendron argenteum
• leucaemia
• Leucaena
• Leucaena glauca
• Leucaena leucocephala
• Leucanthemum
• Leucanthemum lacustre
• Leucanthemum maximum
• Leucanthemum superbum