Stryphnodendron adstringens () is a species of legume in the genus Stryphnodendron found in Brazil.
Holcocera cerradicola is a moth, whose larvae feed on S. adstringens.
Stryphnodendron adstringens stem bark is used to produce tannins of the prorobinetinidins (flavanols oligomers containing robinetinidol) or prodelphinidins type. These are robinetinidol-(4ò â 8)-epigallocatechin, robinetinidol-(4ñ â 8)-epigallocatechin, robinetinidol-(4ò â 8)-epigallocatechin 3-O-gallate, robinetinidol-(4ñ â 8)-epigallocatechin 3-O-gallate, robinetinidol-(4ñ â 6)-gallocatechin and robinetinidol-(4ñ â 6)-epigallocatechin, in addition to the tentatively characterized, robinetinidol [4ò â 6(8)]-gallocatechin and robinetinidol-(4ñ â 8)-gallocatechin.