Kraut - the procedurally tool .

Kraut is a program to procedurally generate plants, especially trees. Through a set of parameters you specify how a tree is supposed to grow. Various different, but similar trees can be generated from the same specification. Additionally there is a manual editing mode, which allows to easily paint branches by hand, such that very unique trees can be created.
They come with this features:
New Features in BETA 2

• Flares along branches: deform the mesh to imitate strong roots or bulges. 
• Billboard Leaves: Leaves that rotate towards the viewer to achive more densly looking trees with few polygons. 
• Frond and Leaf color variation: More natural looking trees through easy to use color variation per leaf. 
• Convert to DDS: All textures that are exported as TGA can now additionally be converted to DDS format. 
• LeafCards: Top-Down mode to create leaf textures for billboards. 
• Visual Tree Component Editor: Much improved UI for editing tree components and reusing them in other trees. 
• Generally much cleaned up UI. Added progress bars for longer operations. 
• Fixed broken FBX export. Improved smooth vertex normals. 
• Several improvements to the tree generation. Branch width is now absolute, Trunk types can be spwaned with more control. 
• Added Billboard and Impostor LOD types. 
• Export to custom format, which supports all the features that are required to fully render a Kraut tree. 
• Added program "Kraut Viewer" with full source, which demonstrates how to load and render a kraut tree.