James 1:10-11

and the rich in his humiliation, for he shall pass away like a flower of the grass.

1 Peter 1:24

For all flesh is like grass, and all its glory like the flower of the grass; the grass has withered, and its flower fell off;

Treasury of Scripture Knowledge

Summary

Therefore their inhabitants were of small power, they were dismayed and confounded; they were as the grass of the field, and as the green herb, as the grass on the housetops, and as corn blasted before it be grown up.

Bible References

They were

James 1:10
and the rich in his humiliation, for he shall pass away like a flower of the grass.
1 Peter 1:24
For all flesh is like grass, and all its glory like the flower of the grass; the grass has withered, and its flower fell off;