The Craspedia daisy - commonly known as billy buttons - is iconic to this area and is the prefered element to use in our logo. You don't have to use the whole plant, although the flowers could be seen as representing the research groups being grounded by the science, or the tuft of the plant base.
An example of how this could be simplified is this logo which I quite like (top right of page):
http://www.anbg.gov.au/gardens/
Others might like to explore mountain/alpine themes. They will need to be very simple though and only use muted alpine color and tones.