We often see guys use aquarium plants as jungle foliage for their 1/35 dioramas. This often looks out of scale and unless heavioly painted, the colors don't look realistic. I'm working on Andrea's Preda..., er
Space Hunter 
and planning to put him in a jungle setting as befits the first movie. I went to

Michael's arts & craft store yesterday and found a bag o' plant stuff in the dried flower section. About a quarter of the stuff was big chunks of leaves that went to the compost pile, but I sorted out the rest. As a result, I have a small bag of debris and another small bar of small, thin leafy/viney plants, a baggie of medium to dark green lichen, a bag of brown ferny material, another of green fern leaves and another of different woody plants, all of which looks like it will be quite usable in 54mm scale. The best news, is that it only cost me $3.00.