▁length ▁that ▁easily ▁det ach . ▁Near ▁the ▁tip ▁of ▁the ▁cy ps ela ▁is ▁also ▁a ▁horn like ▁ring ▁of ▁about ▁ ▁high . ▁ ▁D iffer ences ▁between ▁the ▁species ▁ ▁Poly arr h ena ▁strict a ▁is ▁an ▁asc ending ▁or ▁ere ct ▁low ▁shr ub let ▁of ▁about ▁ ▁high ▁with ▁the ▁outer ▁wh or l ▁of ▁invol uc ral ▁b ract s ▁hair less ▁in ▁the ▁lower ▁third ▁or ▁with ▁some ▁st iff ▁hair s , ▁narrow ly ▁ov ate ▁or ▁l anc et - sh aped ▁asc ending ▁leaves . ▁P . ▁ref lex a ▁sub sp . ▁ref lex a ▁is ▁an ▁asc ending ▁or ▁ere ct ▁high ▁shr ub let ▁of ▁about ▁ ▁high ▁with ▁the ▁outer ▁wh or l ▁of ▁invol uc ral ▁b ract s ▁hair less ▁in ▁the ▁lower ▁third ▁or ▁with ▁some ▁st iff ▁hair s , ▁broad ly ▁ov ate ▁ref lex ed ▁leaves ▁of ▁ ▁long . ▁P . ▁ref lex a ▁sub sp . ▁bra chy ph yl la ▁is ▁an ▁asc ending ▁or ▁ere ct ▁high ▁shr ub let ▁of ▁about ▁ ▁high ▁with ▁the ▁outer ▁wh or l ▁of ▁invol uc ral ▁b ract s ▁entirely ▁hair less , ▁broad ly ▁ov ate ▁ref lex ed ▁leaves ▁of ▁up ▁to ▁ ▁long . ▁Poly arr h ena ▁im br ic ata ▁is ▁an ▁asc ending ▁or ▁ere ct ▁low ▁shr ub let ▁of ▁about ▁ ▁high ▁with ▁the ▁outer ▁wh or l ▁of ▁invol uc ral