Table 3.

Identification of biological ingredients in LDW samples based on ITS2 sequencing data

Ingredient	QD			SG
	1	2	3	1	2	3
Alisma orientalis	√	√	√	√	√	√
Dioscorea opposita		√				√
Paeonia suffruticosa	√	√	√	√	√	√
Rehmannia glutinosa				√
Apiaceae
– Saposhnikovia				√
Asteraceae
– Taraxacum						√
Fabaceae
– Vigna				√
Polygonaceae
– Persicaria						√
– Rumex						√

Note: Sequencing data were generated using the DNA extracted with TCM-CTAB method as template for ITS2 amplification. The words in bold represented the family-level taxonomical terms of contaminating species.