The female with a ovary globose and a floral tube.

The floral tube appears to be a calyx or corolla, but is actually a hollow receptacle.

The sepals are mounted on the rim of the floral tube.

The flowers produce nectar in a chamber at the base of the floral tube.

The outer stamens arise from along the floral tube.

The main characteristics of the three species in this section include a floral tube that is swollen above the ovary (future fruit).

The hypanthium is considered as the floral tube.

The spur (an extension of the floral tube) is conical and reaches a length of 3-4 mm.

The anthers are found within the floral tube, distinguishing the genus from many other Proteaceae.

They are also both much shorter in relation to the length of the floral tube in P. tripartita var.