At the core of the blue agave plant is the "pia" (named after its resemblance to a pineapple). The pia is a powerhouse in the distillation process, responsible for the sweet agave Aloe Vera: Braune Flecken? Ursachen & Lsungen Agave americana variegata Grne und gelbe Agave Agave americana: Cacti and succulents: Featured plants: Biology Building Greenhouse: Indiana University Bloomington How do I regrow aloe roots? : r plantclinic