Fig. 1

In-vitro cytotoxic activity of S. thymbra oil obtained from Wasita and Safsaf localities on the tested cell lines. Significant differences among means of different treatments were separated using Bonferroni posttests at P ≤ 0.05 (n = 3) with all treatments compared to the control; doxorubicin. *: P < 0.05, ***: P < 0.001. W1 and W2 are plants collected from Wasita during fall 2017 and 2018, respectively. S1 andS2 are plants collected from Safsaf during fall 2017 and 2018, respectively