▁the ▁native ▁Nations ▁are : ▁Ay ore o ▁Nation : ▁d atur ira i ▁/ ▁d atura ; ▁En x et ▁Nation : ▁la ap ang ; ▁N iv ac lé ▁Nation : ▁s ôt ô y uc . ▁In ▁Argentina ▁it ▁is ▁also ▁known ▁as ▁pas ac ana / ul ua . ▁The ▁plant ▁remains ▁often ▁un not iced ▁in ▁the ▁forest , ▁but ▁can ▁not ▁be ▁over seen ▁when ▁it ▁bl oss oms ▁only ▁in ▁the ▁night ▁and ▁where ▁its ▁Spanish ▁name ▁origin ates . ▁ ▁The ▁name ▁bon pl and ii ▁hon ors ▁the ▁French ▁scient ist ▁A im é ▁Bon pl and . ▁ ▁Description ▁Harris ia ▁bon pl and ii ▁is ▁stem ▁sc and ent , ▁cl am ber ing ▁or ▁spraw ling ▁and ▁grows ▁up ▁lean ing - cl im bing . ▁The ▁st ems ▁have ▁diam eters ▁of ▁up ▁to ▁ 5 ▁cent im eters ▁and ▁are ▁up ▁to ▁ 2 . 5 ▁meters ▁long . ▁They ▁are ▁three ▁to ▁four ▁ed ged ▁with ▁flat ▁faces . ▁Their ▁edges ▁are ▁sharp ▁and ▁w avy . ▁The ▁single ▁strong ▁central ▁sp ine ▁is ▁up ▁to ▁ 2 . 5 ▁cent im eters ▁long . ▁The ▁four ▁to ▁five ▁side ▁sp ines ▁reach ▁a ▁length ▁of ▁ 4 ▁to ▁ 5 ▁mill im eters ▁ ▁The ▁flowers ▁reach ▁a ▁length ▁of ▁ 2 0 ▁to ▁ 2 5 ▁cent im eters ▁ ▁Their ▁per ic arp el ▁and ▁the ▁cor ol la ▁t ube ▁are ▁virt ually ▁without