The transcriptome data from the leaves of four Papaver species captured at the plant's three developmental life cycles

The plants in the Papaver genus are widely known as Poppies, which is used for ornamental and medicinal purposes, to utilize its plants derived alkaloids and attractive flowers. From this genus, we have sequenced the transcriptomes of four species's (Papaver rhoeas (two cultivar), Papaver nudicaule (five cultivar), Papaver fauriei, and Papaver somniferum) leaves at three developmental stages (i.e., leaf rosette (30 days), elongation and branching (60 days), and blossom and seed formations (90 days)), to elucidate the secondary metabolite biosynthesis gene expression profiles at respective plant stages.