Plants
- Senna (plant), a genus of legumes
- Formerly, plants in Cassia (genus) which used to include Senna
- Black senna, the Scrophulariaceae genus Seymeria
- Bladder sennas, the legume genus Colutea
- Scorpion sennas, plants in the legume genera Coronilla and Hippocrepis
- Senna pod, a laxative
- Senna glycosides, a laxative
Read more about this topic: Senna
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