The Grass Crown (Latin: corona graminea) or Blockade Crown (corona obsidionalis) was the highest and rarest of all military decorations in the Roman Republic and early Roman Empire.[1] It was presented only to a general, commander, or officer whose actions saved a legion or the entire army. One example of actions leading to awarding of a grass crown would be a general who broke the blockade around a beleaguered Roman army. The crown took the form of a chaplet made from plant materials taken from the battlefield, including grasses, flowers, and various cereals such as wheat; it was presented to the general by the army he had saved.[2]
Pliny wrote about the grass crown at some length in his Natural History (Naturalis Historia):