Here is a 3d-reeds package with 117 components, which I made at work for our 3d-model library.
I created a little test-lake with reeds on the shore to see how it looks and to find the right polycount.
The final scene with test-lake.
Reeds (Wip-4)
Reeds (Wip-3)
Reeds (Wip-2)
Reeds (Wip-1)