Figure 1

Position of basicarpic (a) and aerial (b–f) dispersal units of Ceratocarpus arenarius on an individual plant (A), and morphology of the six dispersal unit morphs of Ceratocarpus arenarius (B). The stem of this tumbleweed breaks at the node that is labeled. Circled material from (www.chinabaike.com). gl, glochid. (from Lu et al. 2015, with permission).