Table 2.

Classification of the 442 detected metabolites in D. officinale stems from three habitats.

Class	Number of Compounds	Class	Number of Compounds
Flavonoids	102	Others	20
Lipids	72	Lignans and Coumarins	19
Amino acids and their derivatives	53	Vitamins	7
Alkaloids	42	Terpenoids	5
Phenolic acids	41	Proanthocyanidins	2
Nucleotides and derivatives	29	Quinones	2
Carbohydrates and Alcohols	25	Tannins	1
Organic acid	21	Steroids	1