Palm cabbage is the growing point eaten as a vegetable.
I suggest to change 'palmette' to 'cabbage palm' to avoid confusion. According to Album des Pavillons, the flag with the emblem is the national flag and ensign as well as the war ensign, and the 'plain' flag is the civil ensign. Pocket Book shows the flag without the emblem, with the caption 'For official and state purposes, the flag is charged with the national arms on a central white disc . The rectangle takes almost half the height of the flag, and just over half the length. I noticed we have the English description, and though we don't have the relevant part of the French description, we do have a link showing it.