What plant has the largest flowers?

Eu­ca­lypt­s. Eu­ca­lyp­tus regnans, the Aus­tralian mountain ash, is the tallest of all flow­er­ing plants. Today, the tallest measured specimen named Cen­tu­ri­on is 99.6 m (327 ft) tall (taller than the highest giant se­quoia). Six other eucalypt species exceed 80 metres in height.

Nowhere. The saffron crocus is a triploid that is in­ca­pable of in­de­pen­dent sexual re­pro­duc­tion — all prop­a­ga­tion is via manual "di­vide-and-set" of a starter clone. It may have emerged via plant breeding in late Bronze-Age Crete.

As­para­gus. Young shoots of as­para­gus are covered to exclude light to prevent pho­to­syn­the­sis and the pro­duc­tion of chloro­phyl­l, and thus remain pale in color and delicate in flavor and texture. This tech­nique is called blanch­ing.

It's an opposite to black hole. Ac­cord­ing to theory, white hole could be a region of space­time, where both energy and matter comes from sin­gu­lar­i­ty. Previous re­serch­es doesn't proove their ex­is­tence, although some re­serchers state, that BIng Bang could be an example of such phe­nomenom.