Figure 1.
Morphological features of P. notoginseng in Qing dynasty and modern times. (A) P. notoginseng in Qing dynasty, relic number, Gu00172482-8/9. (B) P. notoginseng of different root sizes (20 tou, 40 tou, 60 tou, 80 tou, 120 tou, and >120 tou; tou is the number of roots per 500 g). (C) Length, diameter, and weight of P. notoginseng in Qing dynasty (n = 30) and in modern times (n = 20). Data are shown in box plot, and the different letters indicate values that vary significantly at P < 0.05 (one-way ANOVA).