I found this gorgeous plant on the riverside in the rainforest. The plant was about 4 feet (120cm) tall.
In the hope to find it blooming I returned to that spot a few weeks later, but alas the plant was destroyed by a very heavy monsoon by which plants on the riverbanks and sides were washed away, defoliated, trees uprooted or severely damaged by the swollen raging river!
Location: rainforest, Paraty, Brazil

Pretty plant Myriam!

I think it's in Euphorbiaceae, perhaps a Manihot sp. of which there is quite a list for Brazil.

There's a similarity to Cassava, scroll down ..

http://indonesiaeats.com/bali-...

Thanks Janet! Yes, there is definitely similarity with the Cassava or Manioc, which is Manihot esculenta, which has only three leaflets, so the Indonesian must be another Manihot sp...
I googled Manioh sps and got this:
https://www.google.be/search?q...
The plant seems to lack the woolly red purplish haired stems and petioles in that link, even the rim of the leaves of mine had red woolly hairs, not seen in my pictures, but I found a very weird looking tiny grasshopper on the leaves which I photographed and there one can see the red hairs on the leaf rims, the leaves of mine also have slight relief between the veins which I lack in Manihot sps. which have smooth leaves. Another thing is that mine had here and there some spikes on it stems.