ar ctic ▁distribution , ▁something ▁reflected ▁in ▁its ▁specific ▁ep ith et . ▁ ▁Description ▁The ▁star wort ▁is ▁a ▁pro str ate , ▁mat - form ing ▁her b , ▁with ▁freely ▁branch ed ▁st ems , ▁root ing ▁at ▁the ▁nodes . ▁It ▁has ▁a ▁similar ▁appearance ▁to ▁water c ress . ▁ ▁The ▁small , ▁f les hy , ▁sp ath ulate ▁leaves ▁are ▁usually ▁ 3 – 5   mm ▁long ▁and ▁ 1 – 2 . 5   mm ▁wide . ▁ ▁Flow ering ▁occurs ▁from ▁September ▁to ▁March . ▁ ▁The ▁yellow ish ▁to ▁d ull ▁brown ▁f ruits ▁are ▁about ▁a ▁mill imet re ▁in ▁diameter . ▁ ▁Distribution ▁and ▁habitat ▁The ▁star wort ▁occurs ▁on ▁Campbell , ▁He ard ▁and ▁Mac qu arie ▁Islands , ▁the ▁A uck land , ▁Ant ip odes , ▁Ker g uel en , ▁Prince ▁Edward , ▁Cro zet ▁and ▁F alk land ▁Islands , ▁as ▁well ▁as ▁on ▁South ▁Georgia ▁and ▁T ierra ▁del ▁Fu ego . ▁ ▁The ▁plant ▁may ▁be ▁locally ▁common , ▁especially ▁in ▁bog gy ▁areas , ▁along ▁streams ▁and ▁around ▁fresh water ▁po ols . ▁ ▁References ▁ ▁Notes ▁ ▁S ources ▁▁▁▁▁ ▁ant arct ica ▁Category : Fl ora ▁of ▁New ▁Zealand ▁Category : Fl ora ▁of ▁the ▁sub ant ar ctic ▁islands ▁Category : S n ares ▁Islands ▁/ ▁T ini ▁He ke ▁Category : Fl ora ▁of ▁southern ▁Chile ▁Category : Fl ora ▁of ▁South ▁Argentina ▁Category : F resh water