Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Tropical Vegetation Free.
Tropical Vegetation v1.0
This package contains 26 unique tropical vegetation models (63 in total, counting all LOD stages). Models are using standard Tree Soft Occlusion shaders. Additional spec and normal maps are available.
Tress bending ice under wind and they can be added to terrain for tree painting.