[1] The section was first described and published by George Bentham in the 1870 fifth volume of his landmark work Flora Australiensis.

Bentham listed several diagnostic characters for the species including the bent and dilated perianth-tube; the sterility of one of the four anthers; the broad, flattened style-end; flat, entire leaves; and axillary flowers.

He did not give an etymology for the epithet Eurylaema,[2] but Ernest Charles Nelson states that it comes from eurys ("broad") and laemos ("neck"), referring to the dilated perianth-tube.

Eurylaema, making no change to its circumscription, but discarded many of Bentham's diagnostic characters, retaining only the sterile anther and the shape of the style-end.

Despite both parents belonging to this section, initially he did not assign the hybrid to it; he did so, however, in his 1995 treatment of Adenanthos for the Flora of Australia series of monographs.