Hi Ken! It is difficult for me too to imagine that they could be a real danger but here you have some articles, if you can read Spanish. The common name of Tillandsias here is " clavel del aire"
This is about Tillandsia recurvata in the province of Cordoba
http://www.revistalacandela.co...
This is the most important newspaper of my city and it shows the concern about some " clavel del aire" growing on jacaranda in " diagonal 73" . Those are Tillandsias aeranthos.
http://www.eldia.com.ar/edicio...
