Asset is governed by the Asset Store EULA; however, the following components are governed by the licenses indicated below:

AwesomeTechnologies\VegetationStudioPro\Runtime\ShaderSystem\Shaders\VS_Speedtree.shader
MIT licence

AwesomeTechnologies\VegetationStudioPro\Editor\External\CurveEditor
MIT licence

AwesomeTechnologies\VSPShaderPackager
MIT licence

AwesomeTechnologies\VegetationStudioPro\Runtime\BillboardSystem\Resources\Shaders\HDWind.cginc
AwesomeTechnologies\VegetationStudioPro\Runtime\BillboardSystem\Resources\Shaders\Resources\3DNoise
AwesomeTechnologies\VegetationStudioPro\Runtime\BillboardSystem\Resources\Shaders\Resources\GustNoise
Unity Companion License

AwesomeTechnologies\VegetationStudioPro\Runtime\Utility\Triangulator
Creative Commons BY-SA 3.0 license. 
https://creativecommons.org/licenses/by-sa/3.0/

AwesomeTechnologies\VegetationStudioPro\Runtime\External\Clipper
Boost Software License - Version 1.0
http://www.boost.org/LICENSE_1_0.txt