Assertion: purple coneflower | /r/HasProperty | perennial plant
Facets:
Source sentences:
text: Purple coneflower is a perennial plant that is native to midwestern and southeastern United States.
text: Purple coneflower (Echinacea purpurea) is a perennial that grows in U.S. Department of Agriculture plant hardiness zones 3 through 9.
text: The purple coneflower is a perennial plant that is pollinated by insects.