Multi-spectral bands and VIs with good or perfect separability (error probability ≤7%) between dominant plants at different phenological stages.

A: the bands and VIs have good or perfect separability between each pair among Spartina, Phragmites, and Scirpus; B: the bands and VIs have good or perfect separability both between Spartina and Phragmites and between Spartina and Scirpus; C1: the bands and VIs have good or perfect separability only between Spartina and Phragmites, C2: the bands and VIs have good or perfect separability only between Spartina and Scirpus. The best dates for Spartina discrimination are highlighted in bold.