Because their flowers can be cross-and/or self-pollinated Verbena stricta, V hastata and V
urticifolia are facultatively xenogamous. We suggest the flowers can be cross-pollinated …

MATERIALS AND METHODS We used two treatments to distinguish between the ability of
flowers to self-pollinate and/or thrips to move pollen within flowers. The inflorescences of …

To determine whether flowers of V. stricta, V. hastata and V. urticifolia cross-pollinate or self-
pollinate, 3 sets of plants from each species were variously treated with malathion or …