Assertion: black walnut | /r/HasProperty | its roots
Facets:
Source sentences:
text: The juglone contained in and secreted by every part of the black walnut--its roots, bark, branches, leaves, and nuts-- poisons the ground and everything living in it for at least fifty feet around it, so you won't be able to plant what you want, only the limited number of species that can tolerate juglone.