peduncle

The first antennae have a lamellar appendage at the end of the peduncle, a decidedly non-entomostracan feature.

The peduncle supporting the plume of medial petals is clearly seen only when the flower opens first.

Clusters small, compound; peduncle slender, of medium length.

Clusters short and broad, compact, with medium to short peduncle.

Clusters medium to large, loose, seldom compound; long peduncle.