Question

what is the difference between calyx and bract ?

Answer 1

Calyx	B ract
Calyx is one of the two non essential whorls of the flower and consists of green, leafy units called sepals which are protective in function.	Bract is a modified leaf and is borne in the axil of a reproductive structure like a flower, inflorescence axis or cone scale. They differ from the normal foliage leaves in colour, shape, size or texture.