Complex sentence: While many Fabaceae are a source of potent entheogens and other psychoactive compounds, e.g. tryptamines, such plants are rarely found among the Caesalpinioideae.
Split into simpler sentences: While many Fabaceae are a source of potent entheogens and other psychoactive compounds, e.g. tryptamines. Such plants are rarely found among the Caesalpinioideae.