'Rush' in the Bible

Can the rush grow up without mire? can the flag grow without water?

Therefore the LORD will cut off from Israel head and tail, branch and rush, in one day.

The nations shall rush like the rushing of many waters: but God shall rebuke them, and they shall flee far off, and shall be chased as the chaff of the mountains before the wind, and like a rolling thing before the whirlwind.

Neither shall there be any work for Egypt, which the head or tail, branch or rush, may do.