Cactus Set is a unity asset pack containing over 400 cacti variations.
Cacti available in the pack are free standing, with or without spikes, flower variations, rounded, rounded ridged and flat style. Cactus Set comes with a custom shader that is 100% emissive but also supports shadows, shader was developed with shaderforge, although you can use your own shaders as you wish.
Two Textures only, in .png format, with original Illustrator source files included for all texture variations should you wish to alter colour schemes or other information. Prefab directory containing all variations.
Shader developed with Shaderforge.
https://www.assetstore.unity3d.com/en/#!/content/14147