buggito_'s Identifications

Invisible Plant (Podolepis capillaris)
The last plant is an immature plant and you wouldn't credit it as the same species.
But Darren Schmitke has monitored the growth of one to see it go from this stage to adult, where all the leaves wither and flower stems go wiry.
In the 6th (2nd to last) shot, the green plant in the background is a different species, the focus of the photo is in the foreground. It's an attempt to show a plant in mid-cycle from all leaves to no leaves.