The battle rent a cobweb diamond-strung
And cut a flower beside a ground bird's nest
Before it stained a single human breast.
The stricken flower bent double and so hung.
And still the bird revisited her young.
A butterfly its fall had dispossessed
A moment sought in air his flower of rest,
The flower was struck by the passing bullet and drooped. That it “bent double” mimics the reflex of humans in pain, effectively  personifying  the flower. The sense of the vulnerability of nature is reinforced.The adjective “stricken” also has connotations of grief and shock; humans are said to be stricken if they receive an emotional blow.
Range-finding