The fibrous roots are stout. Culms erect or genus at base, 1-1.5 meters high, with 4-5 nodes.The lowest temperature of oat grass seed germination is 3-4 ℃. Seedlings can tolerate low temperature from - 2 ℃ to - 4 ℃, adults can still grow slowly at low temperature from - 3 ℃ to - 4 ℃, and suffer at - 6 ℃.
