Complex sentence: Some species in this genus are known to contain potentially useful substances, such as iridoids, and several Scrophularia species have been used in various traditional medicines around the world, such as the Ningpo figwort (Chinese figwort).
Split into simpler sentences: Some species in this genus are known to contain potentially useful substances, such as iridoids. As a matter of fact, several Scrophularia species have been used in various traditional medicines around the world, such as the Ningpo figwort (Chinese figwort).