Bamboo World is a package with 28 different bamboo plant props of different sizes. The textures are photorealistic and are over the whole stem, without any sense of tiling or repetition shown. They are also very low in polygons, using alpha sheets instead of individual leaves, which means you can fill a scene with many of them. Of course, raytracing alpha channels can take render time as well. The following is included:

8 large bamboo trees
8 medium bamboo stems
6 small bamboo sprouts
3 large bamboo groups
3 large bamboo thickets, for instant forest creation.