1, the definition is different: stevia leaf is a perennial herb, stevia is a perennial herb leaves.
2, different morphological characteristics: stevia leaf's plant height is usually between 30 and 150 centimeters, the stem is erect, multi-branched, the surface is ribbed, the leaves are ternary pinnately divided, the head is spherical, and the flowers are white, pink, or purplish-red, and the flowering period is between June and October.