Assertion: vascular cambium | /r/HasProperty | thin layer cells
Facets:
Source sentences:
text: The vascular cambium is a thin layer cells that produces conducting cells - xylem and phloem.
text: The vascular cambium is a thin layer cells that produces conducting cells  xylem and phloem.
text: The vascular cambium is a thin layer cells that produces conducting cells - xylem and phloem.