Posted on July 4, 2022July 23, 2022 by Flinders Ranges Field NaturalistsShrubby Rice-flower: Arkaroola Shrubby Rice-flower (Pimelea microcephala) flowering in the Gammon Ranges in winter. Pimelea flower on the rocky Acacia Ridge, Arkaroola Pimelea growing in the limey, clayey plains near Balcanoona Creek.