▁a ▁sister ▁tax on ▁to ▁this ▁combined ▁group , ▁had ▁st outer ▁old ▁styles ▁on ▁old ▁con es ▁which ▁did ▁not ▁curl ▁around , ▁while ▁those ▁of ▁the ▁other ▁vari eties ▁cur led ▁around ▁the ▁inf ruct esc ence ▁to ▁form ▁a ▁ball . ▁ ▁George ▁replied ▁in ▁the ▁ 1 9 9 9 ▁Flora ▁of ▁Australia ▁treatment ▁of ▁B anks ia ▁that ▁he ▁did ▁not ▁feel ▁this ▁character ▁alone ▁just ified ▁specific ▁rank , ▁and ▁that ▁otherwise ▁the ▁plant ▁was ▁merely ▁larger ▁in ▁all ▁parts ▁to ▁var . ▁ca esia ▁but ▁essentially ▁similar . ▁ ▁In ▁ 2 0 0 2 , ▁Austin ▁M ast ' s ▁mole cular ▁study ▁yield ed ▁a ▁surprise ▁when ▁mole cular ▁analysis ▁mapped ▁out ▁the ▁Iron cap ▁banks ia ▁as ▁a ▁sister ▁tax on ▁to ▁its ▁ge ographical ▁neighbour ▁B .   vi ol ace a ▁in ▁a ▁larger ▁group ▁together ▁with ▁B .   lar icina ▁and ▁B .   inc ana . ▁B anks ia ▁mic ran tha ▁and ▁the ▁two ▁remaining ▁s pha er oc ar pa ▁vari eties ▁form ▁a ▁related ▁group . ▁ ▁Conserv ation ▁ ▁B anks ia ▁s pha er oc ar pa ▁var . ▁dol ich ost y la ▁has ▁been ▁declared ▁R are ▁fl ora ▁by ▁the ▁Western ▁Australian ▁state ▁government ; ▁its ▁status ▁is ▁de emed ▁to ▁be ▁in ▁the ▁wild ▁either ▁rare , ▁in ▁danger ▁of ▁ext inction , ▁or ▁otherwise ▁in ▁need ▁of ▁special ▁protection , ▁and ▁have ▁been ▁gaz ett ed ▁as ▁such