Species included (Invasive and alien plants): American agave - Agave Americana, Bird of paradise - Caesalpinia gilliesii, Castor oil plant - Ricinus communis, Common pest pear - Opuntia stricta, Common thorn apple - Datura stramonium, Coral cactus - Cylindropuntia fulgida, Devil's rope cactus - Cylindropuntia imbricate, Downy thorn apple - Datura inoxia, Fountain grass - Pennisetum setaceum, Guava - Psidium guajava, Jerusalem thorn - Parkinsonia aculeate, Kariba weed - Salvinia molesta, Lantana - Lantana camara, Large thorn apple - Datura ferox, Leucaena - Leucaena leucocephala, Moon cactus - Harrisia martini, Pepper tree - Schinus molle, Pine cone cactus - Tephrocactus articulates, Potato creeper - Solanum seaforthianum, Prickly poppy - Argemone ochroleuca, Prosopis - Prosopis spp, Rosea cactus - Cylindropuntia pallida, Rubber vine - Cryptostegia grandiflora, Sand olive - Dodonaea viscosa var angustifolium, Sisal - Agave sisalana, Syringa tree - Melia azedarach, Wild tobacco - Nicotiana glauca.