Here you can find a pack of few fantasy plants. Triangle counts:
Plant 1 - 3900 tris
Plant 21 - 4000 tris
Plant 22 - 4200 tris
Plant 31 - 25000 tris
Plant 32 - 12000 tris
Plant 41 - 3400 tris
Plant 42 - 3650 tris
Plant 5 - 3300 tris
Plant 6 - 3000 tris
Plant 7 - 2650 tris
Plant 8 - 3150 tris
Plant 9 - 3150 tris