: one or more whorls of bracts situated below and close to a flower, flower cluster, or fruit.

What is Involucre botany?

1. A whorl of bracts around or beneath a condensed inflorescence, such as a capitulum or umbel. It resembles and performs the function of the calyx of a single simple flower.

What is Involucrate?

in·vo·lu·cre

(ĭn′və-lo͞o′kər) A group of one or more whorls of bracts beneath a flower or flower cluster. [French, from Latin involūcrum, wrapper, envelope; see involucrum.]