Campanula, from the Latin for bell referring to the common shape of the flower. Australian species are chiefly herbs with alternate, sometimes opposite, simple leaves, occasionally forming a rosette at the base; some latex usually present. Flowers chiefly 5-merous with a distinct calyx and corolla, regular or almost in the Australian bluebell (Wahlenbergia), but irregular in Lobelia. Carpels 2-5, ovary usually inferior, fruit a capsule, seeds numerous. Lobelia is sometimes placed in a separate family.