## 3 Discussion
### Condensed Tamin  
Prodelphinidin A-type (compound **83**) and (S)-Flavogallonic acid (compound **84**) have been already characterized as components of _Vitis vinifera_[45], _Terminalia arjuna_[46], and _R. rugosa_[47]. CID-spectrum in positive ion modes of (S)-Flavogallonic acid from _R. davurica_ is shown in Figure 10. The [M \(+\) H]\({}^{+}\) ion produced four fragment ions at \(m/z\) 453, \(m/z\) 407, \(m/z\) 321, \(m/z\) 247, and \(m/z\) 205 (Figure 10). The fragment ion with \(m/z\) 407 yielded three daughter ions at \(m/z\) 389, \(m/z\) 307, and \(m/z\) 205. This compound was identified in the bibliography in extracts from _Terminalia arjuna_[46] and _R. rugosa_[47]. The [M \(-\) H]\({}^{-}\) ion produced three fragment ions at \(m/z\) 387, \(m/z\) 300, and \(m/z\) 177 (Figure 8). The fragment ion with \(m/z\) 284 yielded two daughter ions at \(m/z\) 240 and \(m/z\) 175. It was identified in the bibliography in extracts from _G. linguiforme_[25], _Licania ridigna_[43], and _R. Rhodida rosea_[44]. The [M \(-\) H]\({}^{-}\) ion produced three fragment ions at \(m/z\) 287, \(m/z\) 300, and \(m/z\) 177 (Figure 8). The polyphenol composition distribution table of varieties _Rosa rugosa_ Thumb., _Rosa davurica_ Pall., and _Rosa acicularis_ Lindl. is shown below [Table 1]. The comparison table shows the presence of some polyphenols in three types of the genus _Rosa_ (kaempfer, ellagic acid). Some polyphenols are present in only one variety of the genus _Rosa_. \begin{table}
\begin{tabular}{c c c c c} \hline No. & Class of Compounds & Identified Compounds & _R. rugosa_ & _R. davurica_ & _R. acicularis_ \\ \hline
**1** & Flavone & **Hydroxy-methoxy (iso) flavone * & & & \\ \hline
**2** & Flavone & **Apigenin** & & & \\ \hline
**3** & Flavone & **Chryseeriol** (Chryseriol) * & & & \\ \hline
**4** & Flavone & **Hispidulin * & & & \\ \hline
**5** & Flavone & **5,7-Dimethoxyluteolin * & & & \\ \hline
**6** & Flavone & **Crisimaritin * & & & \\ \hline
**7** & Flavone & **Chryseriol methyl ether * & & & \\ \hline
**8** & Flavone & **Cirsiliol * & & & \\ \hline
**9** & Flavone & **Tricin * & & & \\ \hline
**10** & Flavone & **Jacesidin * & & & \\ \hline
**11** & Flavone & **5,6,4\({}^{\prime}\)-Tribhydroxy-7,8-dimetoxyflavone * & & & \\ \hline
**12** & Flavone & **Nevadensin * & & & \\ \hline
**13** & Flavone & **Syringetin * & & & \\ \hline
**14** & Flavone & **Dihydroxy-tetamethoxy(iso)flavone * & & & \\ \hline
**15** & Flavone & **Pentahydro trimethoxy flavone * & & & \\ \hline
**16** & Flavone & **Isouitexin * & & & \\ \hline
**17** & Flavone & **Genistein \(C\)-glucose malonylated * & & & \\ \hline
**18** & Flavone & **Chrysin 6-C-glucose-6”-O-deoxyhexoside * & & & \\ \hline
**19** & Flavone & **Diosmin * & & & \\ \hline
**20** & Flavonol & **Kaempfer** & & & \\ \hline
**21** & Flavonol & **Dihydrokaempfer** & & & \\ \hline
**22** & Flavonol & **Isokaempfer** & & & \\ \hline
**23** & Flavonol & **Quercetin** & & & \\ \hline
**24** & Flavonol & **Morin** & & & \\ \hline
**25** & Flavonol & **Rhamtein I** & & & \\ \hline
**26** & Flavonol & **Rhamtein II * & & & \\ \hline
**27** & Flavonol & **Isorhamtein** & & & \\ \hline
**28** & Flavonol & **Myicetin** & & & \\ \hline
**29** & Flavonol & **Mearsein * & & & \\ \hline
**30** & Flavonol & **Kaempfer**-3-O-**-**-t-rhamoside * & & & \\ \hline
**31** & Flavonol & **Avicularin** & & & \\ \hline
**32** & Flavonol & **Taxifolin-O-pentoside * & & & \\ \hline
**33** & Flavonol & **Taxifolin-3-O-hexoside * & & & \\ \hline
**34** & Flavonol & **Kaempfer** & & & \\ \hline
**35** & Flavonol & **Kaempfer** & 3-O-**-utinoside** & & \\ \hline
**36** & Flavonol & **Kaempfer** & 3-O-deoxyhexosylhexoside & & \\ \hline
**37** & Flavonol & **Isorhamtein** & & & \\ \hline
**38** & Flavan-3-ol & **Epiafezelchin** & & & \\ \hline
**39** & Flavan-3-ol & **Catechin** & & & \\ \hline
**40** & Flavan-3-ol & & & & \\ \hline \end{tabular}
\end{table} 
Table 1: The flavonoid composition distribution of varieties _R. rugosa_ Thumb., _R. davurica_ Pall., and _R. acicularis_ Lindl.