The alkaloid profiles of Sophora nuttalliana and Sophora stenophylla

► The alkaloid composition of Sophora stenophylla and Sophora nuttalliana was investigated. ► S. stenophylla and S. nuttalliana both contain quinolizidine alkaloids. ► S. nuttalliana contains the teratogen anagyrine. ► S. nuttalliana does not contain the neurotoxin swainsonine.