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Physostigma venenosum

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Noun1.Physostigma venenosum - tropical African woody vine yielding calabar beans
genus Physostigma, Physostigma - African woody vines: calabar beans
calabar bean, ordeal bean - dark brown highly poisonous seed of the calabar-bean vine; source of physostigmine and used in native witchcraft
vine - a plant with a weak stem that derives support from climbing, twining, or creeping along a surface


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Physostigma venenosum was used traditionally in Africa as a ritual poison, claimed to determine the guilt or innocence of person accused of a crime.
Eserine [(3 [Alpha],S-[Alpha])-1,2,3,3 [Alpha],8,8 [Alpha]-Hexahydro-1,3 [Alpha],8-trimethylpyrrolo (2,3-b) indol-5-ol methylcarbamate] is an ester obtained from calabar beans, the seeds of the vine Physostigma venenosum.
 
 
 
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