A Scottish crest badge is a heraldic badge worn to show allegiance to an individual or membership in a specific Scottish clan. Crest badges are commonly called clan crests, but this is a misnomer; there is no such thing as a collective clan crest, just as there is no such thing as a clan coat of arms. Crest badges, much like clan tartans, do not have a long history, and owe much to Victorian era romanticism, having only been worn on the bonnet since the 19th century. The original badges used by clans are said to have been specific plants worn in bonnets or hung from a pole or spear.