Proguibourtinidin
Encyclopedia
A Proguibourtinidin is a type of condensed tannins formed from guibourtinidin
Guibourtinidin
Guibourtinidin is a anthocyanidin.-External links:*...

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They can be found in Guibourtia coleosperma
Guibourtia coleosperma
Guibourtia coleosperma, aka African Rosewood, Large False Mopane, Rhodesian Copalwood, Machibi, is a species of Guibourtia in the family Fabaceae. It is a large evergreen tree found in open woodland and occurring almost exclusively on Kalahari Sand....

(the African rosewood) or in Cassia abbreviata
Cassia abbreviata
Cassia abbreviata is a tree species in the genus Cassia found in Africa.Proguibourtinidins, a type of condensed tannins, can be found in C. abbreviata and guibourtinidol, a flavan-3ol, can be found in its heartwood.-External links:*...

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