Variation in morphological traits affects dispersal and seedling emergence in dispersive diaspores of Geropogon hybridus.

The intraspecific variation in diaspore traits is sufficiently large to substantially allow a dispersal-dormancy trade-off of individual diaspores. Our results support the hypothesis that traits of dispersive diaspores evolve in concert to select for increased dispersal potential, and provide an avenue to predict plant offspring performance through simply measured traits.