Popular paper flower variety (6)

I believe the answer is:

dahlia

(Other definitions for dahlia that I've seen before include "Aid Hal (anag) - flower with showy heads" , "In bed, root" , "Lia had this strange flower" , "Garden plant with large brightly-coloured flowers" , "'Hi, a lad has the flower (6)'" .)

I've seen this clue in The New York Times.

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