Caryopsis
Source: https://eflora.sydney.edu.au/glossary/caryopsis Parent: https://eflora.sydney.edu.au/glossary/
a dry, indehiscent fruit formed from a unilocular, superior ovary (probable 3- or 2- carpellary) of the Gramineae (Poaceae) and containing one seed closely fused to the pericarp.