A series of bracts (the phyllaries), usually close together and appressed, below or around a compact head of flowers (as in Compositae/Asteraceae).
A whorl of bracts below an inflorescence (such as found on a sunflower).
One or more whorls of minute leaves.
A set of separate or fused bracts associated with a fruit, as in the walnut.
A set of bracts around a flower, umbel, or head.
A circle of bracts or leaves supporting a flower head.
A cluster of bracts below a flower cluster, especially in the Compositae family.
A whorl of bracts that forms a structure like a calyx around or just below a flower or flower cluster, typical of the daisy family (Compositae).