If Serissa is a genus of a flowering plant, what is Westringia a genus of?
Westringia Westringia is a genus of Australian shrubs. As with other members of the mint family their upper petal (or lip) is divided into two lobes. There are four stamens - the upper two are fertile while the lower two are reduced to staminodes. The leaves are in whorls of 3 or 4.
Banksia rufa subsp. flavescens Banksia rufa" subsp. "flavescens is a subspecies of "Banksia rufa". It was known as Dryandra ferruginea" subsp. "flavescens until 2007, when Austin Mast and Kevin Thiele sunk all "Dryandra" into "Banksia". Since the name "Banksia ferruginea" had already been used, Mast and Thiele had to choose a new specific epithet for "D. ferruginea" and hence for this subspecies of it. As with other members of "Banksia" ser. "Dryandra", it is endemic to the South West Botanical Province of Western Australia.