involucre

in·vo·lu·cre  (nv-lkr)

n.

A series of bracts beneath or around a flower or flower cluster.

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[French, from Latin involcrum, wrapper, envelope; see involucrum.]

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invo·lucral (-krl), invo·lucrate (-krt, -krt) adj.

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involucre  (n-v-lkr)

A series of bracts beneath or around a flower or flower cluster. The cupule, the cuplike structure holding an oak acorn, is a modified, woody involucre.

Thesaurus

Noun

1.

involucre - a highly conspicuous bract or bract pair or ring of bracts at the base of an inflorescence bract - a modified leaf or leaflike part just below and protecting an inflorescence