▁sh iny , ▁o val ▁ever green ▁leaves ▁ 3 – 5   cm ▁long ; ▁white ▁star - sh aped ▁flowers ▁ 1 5   mm ▁diameter ▁bor ne ▁in ▁dense ▁c ory m bs ; ▁and ▁a ▁dry ▁fruit ▁with ▁five ▁fol lic les ▁each ▁containing ▁ 1 0 – 2 0 ▁se eds . ▁ ▁Character istics ▁The ▁inner ▁b ark ▁of ▁Qu illa ja ▁sap on aria ▁can ▁be ▁reduced ▁to ▁pow der ▁and ▁employed ▁as ▁a ▁substitute ▁for ▁soap , ▁since ▁it ▁forms ▁a ▁l ather ▁with ▁water , ▁ow ing ▁to ▁the ▁presence ▁of ▁a ▁g ly cos ide ▁sap on in , ▁sometimes ▁distinguished ▁as ▁qu illa ia ▁sap on in . ▁It ' s ▁also ▁applied ▁as ▁an ▁agricult ural ▁sp ray ▁adj uv ant . ▁The ▁same , ▁or ▁a ▁closely ▁similar ▁subst ance , ▁is ▁found ▁in ▁soap wort ▁( S ap on aria ▁offic inal is ), ▁in ▁sen ega ▁root ▁( Pol yg ala ▁sen ega ) ▁and ▁in ▁s ars ap ar illa ; ▁it ▁appears ▁to ▁be ▁chem ically ▁related ▁to ▁digit on in , ▁which ▁occurs ▁in ▁digital is . ▁The ▁wood ▁is ▁used ▁in ▁cabinet ry , ▁and ▁sc ents ▁derived ▁from ▁the ▁tree ▁are ▁used ▁in ▁perf umes ▁and ▁cos met ics . ▁ ▁Us es ▁ ▁So ap ▁b ark ▁tree ▁has ▁a ▁long ▁history ▁of ▁medic inal ▁use ▁with ▁the ▁And e an ▁people ▁who ▁used ▁it ▁as ▁a ▁treatment ▁for ▁various ▁ch est