## 3 Discussion
### Condensed Tamin
Blue square—presence in extracts of _R. rugosa_; red square—in extracts of _R. davurica_; green square—in extracts of _R. acicularis_. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**No.** & **Class of Compounds** & **Identified Compounds** & _R. rugosa_ & _R. davurica_ & _R. acicularis_ \\ \hline
**41** & Flavan-3-ol & **Gallocatechin** [+(-)Gallocatechin] * & & & \\ \hline
**42** & Flavanone & **Naringen** [Naringetol; Naringenine] & & & \\ \hline
**43** & Flavanone & **Fustin** [2,3-Dihydrofistein] * & & & \\ \hline
**44** & Flavanone & **Eriodictypol** [3\({}^{\prime}\)A,5,7-tetrahydrooxy-flavanone] & & & \\ \hline
**45** & Flavanone & **Eriodictypol**-7-O-glucose** * & & \\ \hline
**46** & Hydroxycinnamic acid & **Caffeic acid** * & & \\ \hline
**47** & Phenolic acid & **Quinic acid** & & \\ \hline
**48** & Phenolic acid & **Citric acid** [Anhydrorous; Citrate] * & & \\ \hline
**49** & Phenolic acid & _trans-Ferulic acid_ & & \\ \hline
**50** & Phenolic acid & **Hydroxy methoxy dimethylbenzoic acid** * & & \\ \hline
**51** & Phenolic acid & **Syringic acid** & & \\ \hline
**52** & Phenolic acid & **3,3,4,4-Tetrahydroxy-5-oxo-cyclohexancarboxylic acid** * & & \\ \hline
**53** & Phenolic acid & **Hydroxyferulic acid** * & & \\ \hline
**54** & Hydroxycinnamic acid & **Sinagic acid** [trans-Sinaptic acid] & & \\ \hline
**55** & Phenolic acid & **2,4,6-Tribhydroxy-3,5-dimethoxyybenzoic acid** * & & \\ \hline
**56** & Hydroxybenzoic acid & **Ellagic acid** * & & \\ \hline
**58** & Phenolic acid & _p-Cumaroylquinic acid_ * & & \\ \hline
**58** & Phenolic acid & **Ginkgoic acid** * & & \\ \hline
**59** & Phenolic acid & **1-[(Acetyl-1-cysteine)oxyl-2,3,4,5-tetrahydrooxycyclohexane-1- & & \\ \hline
**60** & Phenolic acid & **Chlorogenic acid** [3-O-Caffeoylquinic acid] * & & \\ \hline
**61** & Phenolic acid & **Neochlorogenic acid** [5-O-Caffeoylquinic acid] & & \\ \hline
**62** & Phenolic acid & **Rosmarianic acid** & & \\ \hline
**63** & Phenolic acid & **5-Hydroxy feruloyl hexose** * & & \\ \hline
**64** & Phenolic acid & **Salvianolic acid D** * & & \\ \hline
**65** & Phenolic acid & **Salvianolic acid B** [Danfensuan B] * & & \\ \hline
**66** & Stilbene & **Pinosylvin** * & & \\ \hline
**67** & Stilbene & **Resveratrol** * & & \\ \hline
**68** & Stilbene & **3-Hydroyresveratrol** * & & \\ \hline
**69** & Lignan & **Pinoresinol** * & & \\ \hline
**70** & Lignan & **Arctigenin** * & & \\ \hline
**71** & Coumarin & **3,4,5-Trimethoxycomarin * & & \\ \hline
**72** & Coumarin & **Frazin** (Frazetin-8-O-glucose) * & & \\ \hline
**73** & Anthocyanidin & **Anthocyanidin** [cyanidin chloride; Cyanidin] * & & \\ \hline
**74** & Anthocyanidin & **Petunidin** * & & \\ \hline
**75** & Anthocyanidin & **Cyanidin-3-O-glucose** [Cyanidin & \\ \hline
**76** & Anthocyanidin & **Delphinidin O-pentoside** * & & \\ \hline
**77** & Anthocyanidin & **Pelargonidin 3-O-(6-O-malonyl-beta-D-glucoside)** * & & \\ \hline
**78** & Anthocyanidin & **Cyanidin 3-(6\({}^{\prime\prime}\)-Succinyl-Glucoside)** * & & \\ \hline
**79** & Anthocyanidin & **Delphinidin malonyl hexoside** * & & \\ \hline
**80** & Anthocyanidin & **Cyanidin-3-O-dioxyagl-glucose** * & & \\ \hline
**81** & Anthocyanidin & **Delphinidin 3,5-dihexoside** * & & \\ \hline
**82** & Tannin & **Prodelphinidin A-type * & & \\ \hline
**83** & Hydrolysable tannin & **(S)-Flavogallonic acid** & & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._The following polyphenols are present in only _R.