... stem-like, thick, horizontal-travel, between the hollow sections, each with a bud. Stems 2 to ... to break. Cross-section of yellow-white, hollow, Zhou wall thickness of about 1.5 mm, we ... not easy to break. Fracture surface yellow-white, hollow, wall thickness 1-2mm, with holes arranged in a ... , small phloem cells, the central pith large, hollow. Application identification: Reed rhizome and Kudzu, able ...