Question
Hi!
I'm pretty sure this is a species of Linaria, but I'm not sure which. They were found growing wild in East Gippsland, Victoria, Australia.
Here are some photos:
http://commons.wikimedia.org/wiki/User:Fir0002/unidentified_linaria
I would really appreciate an assitance, even if it is only a redirect!

Thanks!

Answer
Peter,
This looks like Linaria canadensis - also called Old Field Toadflax.  It is a native plant in N.America that thrives in disturbed areas.  In other parts of the world it is considered an invasive exotic.

Here is a link to more information:
http://www.bigeastern.com/eotp/ep_linar.htm

I hope this helps!
all the best,
C.L. Fornari