It’s the star formation on the flags of Australia and New Zealand also I believe. Interestingly Crux is a Latin word as the formation was known to the ancient cultures of the Northern Hemisphere. Only found out this myself during the week, nice bit of trivia that may come in handy in a quiz some night :)
The bright stars in Crux were known to the Ancient Greeks, where Ptolemy regarded them as part of the constellation Centaurus. They were entirely visible as far north as Britain in the fourth millennium BC. However, the precession of the equinoxes gradually lowered the stars below the European horizon, and they were eventually forgotten by the inhabitants of northern latitudes. By 400 CE, the stars in the constellation now called Crux never rose above the horizon throughout most of Europe.