1, compared to the two, thistle leaves are smaller and narrower, while basil leaves are wider, thistle leaves are relatively smooth, no obvious folds, is relatively flat leaves, and therefore appear more upright. In contrast the basil leaves have more pronounced folds and are very bumpy.

2, the plant thorn mustard flavor is very heavy, very pungent, in contrast, the taste of basil is more mild, not as pungent as the taste of thorn mustard. Therefore, we can also distinguish between basil and thuja by smelling the odor of the two.

3, mature basil petiole color is darker, is purple, and basil petiole is very smooth, no hair. The petiole of thistle is as tender green as the leaves, but the petiole of thistle is covered with fine and soft downy hairs, in addition, there are some small white burrs on the petiole of thistle. From this point we can well distinguish between basil and thorn mustard.

4, the flowers of basil and thale are relatively small flowers, but the flowers of basil are purple, the odor is heavier, will attract some small insects. And the flowers of the thistle are white. You can differentiate between basil and thistle by the color of the flowers.