Meaning of gang flower in English:

gang flower

Pronunciation /ˈɡaŋ ˌflaʊə/

noun

historical, rare
  • Common milkwort, Polygala vulgaris; also called rogation flower.

Origin

Late 16th century; earliest use found in John Gerard (c1545–1612), herbalist. From gang + flower, so called on account of its flowering in Rogation Week, after Gang Week, Gang Day.