▁about ▁ ▁long ▁and ▁slightly ▁hair y . ▁There ▁are ▁four ▁stam ens . ▁ ▁Flow ering ▁occurs ▁from ▁August ▁to ▁October ▁and ▁is ▁followed ▁by ▁f ruits ▁that ▁are ▁hair y ▁fol lic les . ▁ ▁Tax onomy ▁and ▁naming ▁Z ier ia ▁invol uc r ata ▁was ▁first ▁formally ▁described ▁in ▁ 1 8 6 3 ▁by ▁George ▁Bent ham ▁from ▁an ▁un pub lished ▁description ▁by ▁Robert ▁Brown . ▁Bent ham ' s ▁description ▁was ▁published ▁in ▁Flora ▁Austral i ensis . ▁The ▁specific ▁ep ith et ▁( in vol uc r ata ) ▁is ▁derived ▁from ▁the ▁Latin ▁word ▁invol uc rum ▁meaning ▁" wrapper ", ▁" case " ▁or ▁" en velope ", ▁referring ▁to ▁the ▁persistent ▁b ract s . ▁ ▁Distribution ▁and ▁habitat ▁This ▁z ier ia ▁grows ▁in ▁wet ▁forest , ▁mainly ▁in ▁the ▁lower ▁Blue ▁Mountains ▁but ▁has ▁also ▁been ▁recorded ▁from ▁north ▁and ▁west ▁of ▁Sydney . ▁ ▁Conserv ation ▁Z ier ia ▁invol uc r ata ▁is ▁class ified ▁as ▁" v ul ner able " ▁under ▁the ▁Australian ▁Government ▁Environment ▁Prote ction ▁and ▁B iod iversity ▁Conserv ation ▁Act ▁ 1 9 9 9 ▁and ▁as ▁" end anger ed " ▁under ▁the ▁New ▁South ▁Wales ▁Government ▁Th re aten ed ▁Species ▁Conserv ation ▁Act ▁ 1 9 9 5 . ▁The ▁main ▁threat ▁to ▁the ▁species ▁is ▁in app ropri ate ▁fire ▁reg imes , ▁especially ▁frequent ▁fires . ▁ ▁References ▁ ▁External ▁links ▁▁▁ ▁invol uc r ata ▁Category