Origin of caducous
Examples from the Web for caducous
Leaves alternate, compound, digitate, caducous; leaflets 5–7 with long common petiole.
Stipules between the opposite and compound leaves (but they are caducous).
Caducous, dropping off very early, compared with other parts; as the calyx in the Poppy, falling when the flower opens.The Elements of Botany|Asa Gray
Caducous, ka-dū′kus, adj. falling early, as leaves or flowers.
Flowers yellow, in racemes, with caducous bracts and bractlets.