Errrr, actually Sean most of the pygmy and tuberous Drosera from Australia DO have common names. Most are listed in Erickson's "Plants of Prey in Western Australia". I favor the preservation of those names since it seems a shame that they would have been used so long by many and then forgotten. For those wishing to be scientific the binomials are more communicative with less chances of confusion, but it's still fun to see "Modest Rainbow" (D. modesta) or "Shining Sundew" (D. nitidula) occasionaly bandied about.