Assertion: bracken | /r/HasProperty | pteridium
Facets:
Source sentences:
text: Bracken (Pteridium) is a genus of large, coarse ferns in the family Dennstaedtiaceae.
text: Vessels, longitudinal channels composed of linear series of such perforated cells, have been reported from such diverse ferns as waterclover (Marsilea) and bracken (Pteridium).
text: Bracken (Pteridium) is a genus of large, coarse ferns in the family Dennstaedtiaceae.