Petrophile brevifolia Endemic
Identified by our leaders on the WAFs tour, this elegant shrub is one of the Proteaceae which tends to cause confusion to those of us new to Hakea, Petrophile, Banksia, Dryandra, Grevillea and Isopogon. The flowers alone don't give the genus away but the characteristics of the fruit are different.
To me as a Australian beginner botanist, I could see very little difference between the structure of Petrophile and Isopogon flowers but strangely they are not near relatives. Petrophile is more closely related to Aulax an African genus.