Concise Bible Dictionary:
In Exodus 2:33And 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. (Exodus 2:3) and Isaiah 18:2 The papyrus is referred to, a reed of which ancient paper was made. It was of this that the ark was made in which the infant Moses was put (Ex. 2:33And 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. (Exodus 2:3)), and the smaller boats on the Nile (Isa. 18:22That sendeth ambassadors by the sea, even in vessels of bulrushes upon the waters, saying, Go, ye swift messengers, to a nation scattered and peeled, to a people terrible from their beginning hitherto; a nation meted out and trodden down, whose land the rivers have spoiled! (Isaiah 18:2)). In Isaiah 58:55Is it such a fast that I have chosen? a day for a man to afflict his soul? is it to bow down his head as a bulrush, and to spread sackcloth and ashes under him? wilt thou call this a fast, and an acceptable day to the Lord? (Isaiah 58:5) it is a different word, and is used for any kind of “rush.” Both words are also translated “rushes.”
Cyperus Papyrus – Reeds that grow along the Nile.
Cyperus Papyrus