Involucre
Encyclopedia
Involucre may refer to
- involucral bract, a bract, bract pair, or whorl of bracts surrounding a flower or inflorescence
- a term sometimes misused for the cupuleCupuleThe calybium and the cupule make up the accessory fruit of flowering plants in the family Fagaceae. These two parts derive from different flower components....
surrounding developing nuts in the FagaceaeFagaceaeThe family Fagaceae, or beech family, comprises about 900 species of both evergreen and deciduous trees and shrubs, which are characterized by alternate simple leaves with pinnate venation, unisexual flowers in the form of catkins, and fruit in the form of cup-like nuts. Fagaceous leaves are often...
(e.g., the cap of an acorn)