The soil of Munnar seems particularly fertile: fruits and vegetables grow very well, as does tea. Weeds which take root in pretty inhospitable soil all over the country do extremely well here. One extremely visible example is morning glory. I see it struggling to keep alive in empty concreted lots in Mumbai. Here it takes over everything. We drove through a forest where morning glory was beginning to suffocate a whole stand of trees (featured photo).
Elsewhere it is even trying to suffocate Lantana. That’s as tiring as seeing Iron Man and Captain America slogging it out.