'Almond tree' in the Bible

Also, they are afraid of heights, and of terrors in the way; and the almond tree blossoms, and the grasshopper is burdened, and the caper bush fails; because man goes to his eternal home, and the mourners go about the streets:

Moreover the word of the LORD came to me, saying, "Jeremiah, what do you see?" I said, "I see a branch of an almond tree."