caducous.

/kuh-doo-kuhs, -dyoo-/US // kəˈdu kəs, -ˈdyu- //UK // (kəˈdjuːkəs) //

寅吃卯粮,腔调

Definitions

1.
- ›Botany. dropping off very early, as leaves.
- ›Zoology. subject to shedding.
- ›transitory; perishable.

Leaves alternate, compound, digitate, caducous; leaflets 5–7 with long common petiole.
Leaves alternate, with stipules, these sometimes caducous, rarely obsolete or wanting.
Achenes short and thick, compressed or turgid, truncate, glabrous; pappus of 2–8 caducous awns.
Flowers white, small, in terminal umbel-like clusters from large scaly buds; bracts or scales thin and caducous.
Caducous, dropping off very early, compared with other parts; as the calyx in the Poppy, falling when the flower opens.