Saint-Catherine's flower
noun
Saint-Cath·er·ine's flower
-ˈkath(ə)rə̇nz-
1
[so called from the fancied resemblance of the styles to the spikes on Catherine's wheel] : love-in-a-mist sense 1
2
: poinsettia
Word History
Etymology
after St. Catherine of Alexandria †about 307 Christian martyr who was tortured on a spiked wheel