A collective phyllome structure composed of two or more involucral bracts at the base of a cluster of flowers, as found in Asteraceae or Compositae. [ POC:curators ]
术语信息
- PO_GIT:71
- PO_GIT:100
The burs or bristles in Cenchrus and Pennisetum are not involucres because the fused structures are branches and not bracts.
A collective phyllome structure composed of two or more involucral bracts at the base of a cluster of flowers, as found in Asteraceae or Compositae.