Taraxacum sp. (Dandelion)

Note that at higher altitudes, this could be the native dandelion, Taraxacum aristum.

Environmental weed in NSW and Vic (as Taraxacum officinale).

http://keyserver.lucidcentral.org/weeds/data/media/Html/taraxacum_officinale.htm

Regional distribution

Taraxacum sp. is listed in the following regions: