Assertion: yellow coneflower | /r/HasProperty | ratibida pinnata
Facets:
Source sentences:
text: If you grow perennials that include either the purple coneflower (Echinacea purpurea or Rudbeckia purpurea) or the yellow coneflower (Ratibida pinnata), then you'd probably like to keep the plants blooming as long as possible and also keep them looking neat and tidy.