'Stem' in the Bible

And when they were going away, Jesus, talking of John, said to all the people, What went you out into the waste land to see? a tall stem moving in the wind?

The crushed stem will not be broken by him; and the feebly burning light will he not put out, till he has made righteousness overcome all.

But when the green stem came up and gave fruit, the evil plants were seen at the same time.