1. Very leafy malodorous tropical weedy shrub whose seeds have been used as an adulterant for coffee; sometimes classified in genus Cassia
   - coffee senna, styptic weed, stinking weed, Senna occidentalis, Cassia occidentalis

Derived forms: mogdad coffees

Type of: senna

• Siamese twin
• Sian
• sib
• Sibelius
• Siberia
• Siberian
• Siberian crab
• Siberian crab apple
• Siberian elm
• Siberian husky
• Siberian larch
• Siberian millet
• Siberian pea tree
• Siberian spruce
• Siberian wall flower
• sibilant
• sibilant consonant
• sibilate
• sibilation
• Sibine
• Sibley tent
• sibling
• sibyl
• sibyllic
• sibylline