Hosta

Balanophotannin D is a hydrolyzable tannin found in Balanophora japonica. It contains an oxidized hexahydroxydiphenoyl (HHDP) group.^[1]

References

^ Jiang, Z. H.; Wen, X. Y.; Tanaka, T.; Wu, S. Y.; Liu, Z.; Iwata, H.; Hirose, Y.; Wu, S.; Kouno, I. (2008). "Cytotoxic hydrolyzable tannins from Balanophora japonica". Journal of Natural Products. 71 (4): 719–723. doi:10.1021/np070519+. PMID 18302336.

Types of hydrolysable tannins
Carbohydrates	Glucose Quinic acid Shikimic acid
Phenolic	gallic acid \| Ellagic acid \| Vanillic acid
Types	Ellagitannins Gallotannins
unclassified	1,2-di-O-galloyl-3-O-digalloyl-4,6-O-(S)-hexa- hydroxydiphenoy-β-D-glucose 2,3-(S)-Hexahydroxydiphenoyl-D-glucose Alienanin B Alunusnin A Aromatinin A Balanophotannin D, E, F and G Burkinabin A, B and C Castavaloninic acid Cinchotannic acid Cocciferin D2 Emblicanins (Emblicanin A and Emblicanin B) Euprostin A Flavogallonic acid Flavogallonic acid dilactone Heterophylliin D Helioscopin A (1,6-(S)-hexahydroxydiphenoyl-2,4-(R)-elaeocarpusinoyl-3-O-galloyl-β-D-glucose) Helioscopin B (1,3,6-tri-O-galloyl-2,4-(R)-elaeocarpusinoyl-β-D-glucose) Helioscopinin A (1,6-(S)-hexahydroxydiphenoyl-2,4-(S)-dehydrohexahydroxydiphenoyl-3-O-galloyl-β-D-glucose) Helioscopinin B (1,6-(S)-hexahydroxydiphenoyl-3-O-galloyl-β-D-glucose) Hipophaenin D Isostrictinin Kinotannic acid Platycaryanin A Rugosin C, D and F Squarrosanin A Strictinin Syzyginin A Tannic acid Tellimagrandin I Tercatin Tergallagin Vescalin Vescavaloneic acid/Castavaloneic acid
Other	Tannin sources Tannate