▁distinguished ▁from ▁these ▁by ▁having ▁only ▁two ▁( not ▁three ▁or ▁five ) ▁styles ▁in ▁the ▁flower . ▁It ▁is ▁also ▁related ▁to ▁Gy ps oph ila , ▁but ▁its ▁cal y x ▁is ▁cyl ind rical ▁rather ▁than ▁bell - sh aped . ▁ ▁S ap on aria ▁species ▁are ▁e aten ▁by ▁the ▁lar va e ▁of ▁some ▁Le pid optera , ▁including ▁the ▁Ly chn is ▁and ▁Cole op hora ▁sap on ar iella , ▁which ▁is ▁exclusive ▁to ▁the ▁genus . ▁ ▁D iversity ▁There ▁are ▁ 3 0 ▁to ▁ 4 0 ▁species ▁in ▁the ▁genus . ▁ ▁Species ▁include : ▁ ▁S ap on aria ▁b arg y li ana ▁S ap on aria ▁bell id ifolia ▁S ap on aria ▁ca esp it osa ▁S ap on aria ▁cal ab rica ▁– ▁Adri atic ▁soap wort ▁S ap on aria ▁j ag el ii ▁S ap on aria ▁kar ap inar ensis ▁S ap on aria ▁kot sch yi ▁S ap on aria ▁l ute a ▁S ap on aria ▁oc ym o ides ▁– ▁rock ▁soap wort , ▁t umb ling - T ed ▁S ap on aria ▁offic inal is ▁– ▁b oun cing bet , ▁sweet ▁Betty ▁S ap on aria ▁pam phy lica ▁S ap on aria ▁p um ila ▁S ap on aria ▁p um ilio ▁– ▁pyg my ▁p ink ▁S ap on aria ▁sic ula ▁S ap on aria ▁suff rut ic osa ▁ ▁References ▁ ▁External ▁links ▁