A timelapse video of sagebrush steppe species shows that rehydration of leaves is crucial to leaf measurements because species level weights and areas will be inaccurate if leaves are wilted. 

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Some of my favorite plant species from when I worked in the Coteau Prairies of South Dakota. Left to Right:  Lilium philadelphicum (Wood Lily), Cypripedium candidum (White Lady's Slipper), Pulsatilla patens (Pasqueflower), and Corallorhiza striata (Striped coralroot).