A large sheathing bract enclosing the flower cluster of certain plants, especially the spadix of arums and palms.The flower head consists of a spathe and spadix....
Four of the five bracts that enclose and protect the plant's spathe and spadix now have fallen.
Always bitterly exuberant, you see life as a pink spathe swathing a yellow spadix.
Origin
Late 18th century: via Latin from Greek spathē 'broad blade'.