Petals (collectively called the corolla) are also sterile floral parts that usually function as visually conspicuous elements serving to attract specific pollinators to the flower.
the vascular tissues xylem and phloem , which are present in the are extende through out the plant . From main stem to branched stem to leaves [midrib] to petiol [stalk of flower ] to petals of flower.
As we know the defination of flower , it is a modified shoot . means each whorl of flower [calyx, corrolla , androecium and gynoecium i] is a modified leaf , means all the whorls have extention of vascular strand in it which came from stem .
in our diagram we have to show this extention of vascular strand . SEE photo
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