Dispersion in plants due to wind-dispersed seeds is usually:
Wind can carry seeds away from parent plants without directing them toward particular neighbors, so on a relatively homogeneous surface their landing positions may approximate random dispersion. In a random pattern, each position is broadly independent and quadrat counts have variance near the mean. This contrasts with uniform spacing generated by strong interference or allelopathy and clumping caused by patchy resources, animal deposition sites, or limited dispersal. The statement is an idealization: most wind-dispersed seeds fall near the parent, creating distance-dependent clustering, and a
Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 9
