Figure 5. Distribution of mean absolute error (MAE) among phenoclimate models of a) population-level flowering onset DOY, b) population-level peak flowering DOY, and c) population-level flowering termination DOY trained using simulated species bias towards individuals collected shortly after their flowering onset, proximate to their peak flowering DOY, without bias, or with bias towards collection shortly before the end of that individual’s flowering period. All species included in these models exhibited a phenological responsiveness of 4 Days/˚C, a high degree (σ = 30 days) of intrapopulation variation, and long (60 day) individual flowering durations. Within each panel, groups of models associated with different letters exhibit statistically different mean MAEs between groups of taxa. Where statistically significant differences in MAE were detected, statistical significance was high (p < 0.001) in all cases.