</s> ▁K ad ua ▁cook iana ▁( former ly ▁H edy ot is ▁cook iana ) ▁is ▁a ▁rare ▁species ▁of ▁flow ering ▁plant ▁in ▁the ▁coffee ▁family ▁known ▁by ▁the ▁common ▁names ▁' aw i wi ▁and ▁Cook ' s ▁bl uet . ▁It ▁is ▁en demic ▁to ▁Hawai i , ▁where ▁it ▁is ▁known ▁only ▁from ▁K au ai , ▁having ▁been ▁ext ir p ated ▁from ▁Mol ok ai ▁and ▁Hawai i .< ref ▁name = five > US F WS . ▁[ http :// ec os . f ws . gov / docs / five _ year _ review / doc 3 2 9 4 . pdf ▁K ad ua ▁cook iana ▁Five - year ▁Review .] ▁August ▁ 2 0 1 0 .</ ref > ▁It ▁is ▁a ▁feder ally ▁listed ▁end anger ed ▁species ▁of ▁the ▁United ▁States . ▁ ▁Today ▁there ▁are ▁two ▁populations ▁of ▁the ▁plant ▁in ▁the ▁Han ako a ▁and ▁Wa ia hu ak ua ▁Valle ys ▁on ▁the ▁N ā ▁P ali ▁Coast ▁of ▁K au ai , ▁with ▁a ▁total ▁global ▁population ▁of ▁no ▁more ▁than ▁ 1 2 2 ▁individuals . ▁The ▁plant ▁grows ▁next ▁to ▁flow ing ▁water , ▁particularly ▁water falls , ▁where ▁it ▁grows ▁from ▁cra cks ▁in ▁bas alt ▁walls ▁next ▁to ▁the ▁falling ▁water . ▁Other ▁plants ▁in ▁the ▁habitat ▁include ▁a hin ah ina ▁( Ar tem is ia ▁austral is ), ▁k ook ool au ▁( B id ens ▁for bes ii ,