BUXUS SEMPERVIRENS (Buxaceae) of Turkish origin has yielded a new steroidal alkaloid, (-)-( Z)-buxenone ( 1) along with its known isomer (-)-( E)-buxenone ( 2). The plant also yielded 4',5-dihydroxy-3,3',6,7-tetramethoxyflavone ( 3) and artemetin (5-hydroxy-3,3',4',6,7-pentamethoxyflavone) ( 4). These flavones have not been isolated from BUXUS species previously.