<Li> whorled: one or more discrete whorls (series) </Li> <P> They may be arranged, with respect to the petals: </P> <Ul> <Li> diplostemonous: in two whorls, the outer alternating with the petals, while the inner is opposite the petals . </Li> <Li> obdiplostemonous: in two whorls, the outer opposite the petals </Li> </Ul> <Li> diplostemonous: in two whorls, the outer alternating with the petals, while the inner is opposite the petals . </Li>

What is the part of the flower to which petals sepals and stamens are attached