The plant stands for growth and development, like the green shoot in the diaphragm chakra of the kundalini yoga system. The shoot symbolizes Shiva and represents the centre and the male, whereas the calyx represents the female, the place of germination and birth.
Jung reads the plant in mandala imagery as a symbol of psychic growth, linking botanical germination to the masculine principle and the sacred centre of the self.
, The Archetypes and the Collective Unconscious, 1959thesis