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'Death come quickly' is an interesting name. Today's proper grammar would demand it to be 'Death comes quickly'. Maybe it is a result of traditional names being at ease with grammar or it is a result of old grammar being used. But then it would go like 'Death cometh quickly'. Or maybe the meaning is 'Death, come quickly!'? Or not :)
And now I am pondering the grammar I used in this post :D

It is a magical plant... it has all sorts of effects on people. ;-)

@leoplaw & @photo-deja-vu - Mystery of "Death, come quickly" & "Death comes quickly" is as follows :) - It is derived from a story of theft of a (fictional) painting of a woman with this flower, by a (real) Mexican artist, María Izquierdo. Chapter Six: The painting was titled "DEATH COME QUICKLY" .
https://gottawritenetwork.wordpress.com/2015/04/13/guest-blog-post-death-come-quickly-by-susan-wittig-albert/