Primary xylem Xylem derived from the procambium in the young plant.
Primary xylem Xylem derived from the procambium in the young plant.
初生木质部：指幼嫩植物中来源于原形成层的木质部。
Primary xylem Xylem derived from the procambium in the young plant.
初生木质部：指幼嫩植物中来源于原形成层的木质部。