In the twelfth century king Henry the second caused certain figures to be painted, which had a descriptive reference to his name; the planta genistae, or broom sprig, and a genet passing between two broom trees.

-From Inquires into the Origin and Progress of the Science of Heraldry in England by James Dallaway, p423

Badges of Henry II of England

dalloway425 p2.175 henry ii.2 dalloway425 p2.175 henry ii

From Inquiries into the Origin and Process of the Science of Heraldry in England by James Dallaway, p425

The left (a genet, or a small mammal resembling a civet or mongoose, between two broom plants, or genêt in French) is an allusion to Henry’s family name of Plantagenet, and the right, an escarbuncle, is derived from the arms of the House of Anjou.