Simulated Herbarium data for testing the accuracy with which specimen data can predict the timing and duration of population-level flowering displays

This dataset provides code and example data for simulating specimen
collections of flowering plants across North America, and for developing
phenological predictions of population-level flowering onset and
termination for these data.  It further presents code for
assessing the accuracy of these predictions relaticve to known (simulated)
population-level flowering dates at the location of each collection.