Orobanche minor Common Broomrape
This is an introduced species in western Australia and at first it was thought to be Orobanche cernua var australiana. O. cernua and O. ramosa do grow in Australia but not in Western Australia and the purplish colour of the flowers are unusual compared with the more browny colours in the UK. However colour of the main plant isn't much of an indication of identity in Orobanche species as indicated in book by C.A.J. Kreutze who says O. minor can be: red-brown, violet-purple, yellow-brown or brownish tinged with red rarely yellow-brown. This one is certainly densely glandular hairy.