▁may ▁be ▁up ▁to ▁seven ▁cent imet res ▁long . ▁ ▁The ▁flowers ▁are ▁yellow , ▁and ▁held ▁in ▁cyl ind rical ▁clusters ▁about ▁five ▁mill imet res ▁in ▁diameter . ▁ ▁The ▁pod s ▁are ▁up ▁to ▁ 1 4 ▁cent imet res ▁long , ▁with ▁con str ict ions ▁between ▁the ▁se eds . cent imet res ▁wide . ▁ ▁There ▁are ▁two ▁sub species : ▁Ac acia ▁s cl eros per ma ▁sub sp . ▁s cl eros per ma ▁and ▁ ▁Ac acia ▁s cl eros per ma ▁sub sp . ▁gla u ces c ens . ▁ ▁The ▁latter ▁is ▁commonly ▁known ▁as ▁b illy ▁blue , ▁and ▁is ▁currently ▁considered ▁under ▁threat , ▁though ▁not ▁yet ▁end anger ed . ▁ ▁See ▁also ▁List ▁of ▁Ac acia ▁species ▁ ▁References ▁▁▁▁▁▁▁▁ ▁s cl eros per ma ▁Category : F ab ales ▁of ▁Australia ▁Category : A ca cias ▁of ▁Western ▁Australia ▁Category : T ax a ▁named ▁by ▁Ferdinand ▁von ▁Mu eller ▁Category : Pl ants ▁described ▁in ▁ 1 8 8 2 <0x0A> </s> ▁The ▁Blues ▁and ▁Other ▁Colors ▁is ▁an ▁album ▁by ▁sa x oph on ist ▁James ▁Mo ody ▁recorded ▁in ▁ 1 9 6 8 ▁and ▁ 1 9 6 9 ▁and ▁released ▁on ▁the ▁Mil estone ▁label . ▁ ▁Re ception ▁ ▁Scott ▁Yan ow ▁of ▁All music ▁states , ▁" Best ▁known ▁for ▁his ▁ten or ▁and ▁alto ▁playing ▁( although ▁he ▁is ▁also ▁recognized ▁as ▁a ▁tal ented ▁fl ut