Seed dispersal part two. Needless to say many plants shed their seed by dropping the fruit straight to the ground. Hence Newton discovered gravity. There is a variation on that; some plants lean over first.

 Case in point the fruits of the Stinking Iris (Iris foetidissima) emerge from the pod as the stem withers. The stem begins to lean and they end up on the ground away from the main clump thus enlarging the potential distribution of the plant. NB I use the word fruit in the botanical sense i.e. the seed bearing structure of a flowering plant. The "fruits" of Stinking Iris are poisonous.