What flower is the floral emblem of Scotland?

The thistle is the floral emblem of Scotland.

The plant became a Scottish national symbol during the reign of King Alexander III (1249–1286). A famous legend says that a barefoot Norse soldier stepped on a thistle while trying to surprise a Scottish encampment at night. His cry alerted the defenders, supposedly helping the Scots repel the attack. The story is often linked with the Battle of Largs in 1263, although historians cannot confirm the episode.

The thistle’s symbolism also comes from its defensive prickles, which inspired the motto Nemo me impune lacessit—“No one attacks me with impunity.” Scottish coins displayed the thistle as early as the reign of James III, with a silver issue recorded in 1474. It later appeared in royal heraldry, military badges and the insignia of the Order of the Thistle.

A common mix-up is assuming every Scottish thistle represents one species. The medieval legend’s plant is disputed; candidates include the native spear thistle and the non-native cotton thistle.