A look at a typical grevillea conflorescence shows that the peduncle is the stalk of the conflorescence, the floral rachis extends from the peduncle and from this the pedicels connect to the florets. At the base of the floret is the torus or receptacle, a disc-like organ that supports the perianth on its outer rim, houses the nectary over most of its surface and supports the pistil which emerges on its dorsal side. The perianth is the floral tube made up of two dorsal and two ventral tepals, which terminate at their apex in a ball-like limb (tepals are the equivalent of the petals and sepals of other flowers). Within the perianth is the nectary (the organ which produces the nectar), the ovary that becomes the seed, and the style. The anthers are attached to the inner surface of the tepal limb. At the time of anthesis, i.e. when the style end is released from the limb, the pollen grains are deposited on the pollen presenter. In most species the perianth falls soon after anthesis.
