▁they ▁may ▁be ▁told ▁apart ▁in ▁the ▁following ▁manner : ▁P . ▁pal ust re ▁has ▁h ollow , ▁often ▁pur pl ish ▁st ems , ▁p inn atif id ▁leaf ▁lo bes ▁and ▁def lex ed ▁b ract e oles ; ▁while ▁S . ▁car v ifolia ▁has ▁solid , ▁green ish ▁st ems , ▁entire ▁or ▁sometimes ▁lo bed ▁leaf - lob es ▁and ▁ere ct o - pat ent ▁b ract e oles . ▁Also , ▁when ▁the ▁two ▁plants ▁are ▁in ▁fruit , ▁another ▁difference ▁becomes ▁apparent : ▁the ▁three ▁d ors al ▁rid ges ▁on ▁the ▁fruit ▁of ▁S . ▁car v ifolia ▁are ▁wing ed , ▁while ▁those ▁on ▁the ▁fruit ▁of ▁ ▁P . ▁pal ust re ▁are ▁not .< ref > U mb ell if ers ▁of ▁the ▁British ▁Is les ▁ ▁B . S . B . I . ▁Hand book ▁No . 2 . ▁T ut in ▁T . G . ▁Pub . ▁Botan ical ▁Society ▁of ▁the ▁British ▁Is les , Lond on ▁ 1 9 8 0 .</ ref > ▁ ▁The ▁roots ▁of ▁Pe u ced an um ▁pal ust re ▁have ▁been ▁used ▁as ▁a ▁substitute ▁for ▁g inger ▁in ▁S out he astern ▁Europe ▁and ▁like wise ▁in ▁Russia . ▁The ▁English ▁botan ist ▁John ▁Lind ley ▁( under ▁the ▁heading ▁Pe u ced an um ▁mont an um ' ') ▁also ▁mentions ▁the ▁use ▁of ▁the ▁root ▁as ▁an ▁ant ie p ile ptic ▁in ▁the ▁region