Cross reference
Job 8:11
11 Can the rush grow up without mire? can the flag grow without water?
Exodus 2:3
3 And when she could not longer hide him, she took for him an ark of bulrushes, and daubed it with slime and with pitch, and put the child therein; and she laid it in the flags by the river's brink.
Isaiah 19:5-7
5 And the waters shall fail from the sea, and the river shall be wasted and dried up.
6 And they shall turn the rivers far away; and the brooks of defence shall be emptied and dried up: the reeds and flags shall wither.
7 The paper reeds by the brooks, by the mouth of the brooks, and every thing sown by the brooks, shall wither, be driven away, and be no more.