popæg

Old English popæg derives from Latin papāver, which has no clear Indo-European etymology and may come from a pre-Latin Mediterranean language. The poppy was one of the first plants cultivated by humans — seeds have been found in Neolithic lake dwellings in Switzerland dating to approximately 4000 BCE. The Sumerians called the opium poppy hul gil, 'the joy plant,' around 3400 BCE. The word and the plant arrived in English separately: the Latin botanical term through monastic gardens, the Old English word through everyday speech.

Opium — from Greek opion (poppy juice) — has shaped world history more than any other plant extract. The Opium Wars of 1839–1842 and 1856–1860 were fought because Britain wanted to continue selling Indian-grown opium to China against the Chinese government's objections. Britain won both wars. The Treaty of Nanking ceded Hong Kong to Britain and opened Chinese ports to opium trade. A flower's sap redrew the map of Asia.

The red poppy became a symbol of remembrance for war dead after World War I. John McCrae's poem 'In Flanders Fields' (1915) — 'In Flanders fields the poppies blow / Between the crosses, row on row' — observed that poppies were the first flowers to grow on the churned-up battlefields of Belgium. Moina Michael, an American professor, campaigned to make the red poppy a memorial symbol in 1918. The Royal British Legion adopted it in 1921. In Britain and Commonwealth countries, wearing a poppy in November is a near-universal custom.

Poppy seeds — from the same species, Papaver somniferum — contain trace amounts of opiate alkaloids, enough to produce false positives on drug tests. The seeds on a breakfast bagel and the sap in a heroin syringe come from the same plant. The word poppy covers all of it: breakfast, heroin, and war memorials. No other flower name carries so much contradictory weight.