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Hazelnuts
Every rated Corylus record is fire-resistant — 4 of 5 records, including the genus rated as a group; none is condemned. These counts describe the cited records — 5 records carrying 27 evidence rows from 17 cited sources; they do not make one verdict for the genus.
Rated as a group: Hazelnut Corylus sp. Awaiting evidence Mid-scale score 2 sources rate the genus as a
whole. Species evidence never rolls upward into a genus verdict, and genus claims never
override a species record.
› Fire-resistant
4 species
-
Contorted filbert Fire-resistant Corylus avellana 'Contorted' -
American hazelnut Fire-resistant Corylus americana -
Beaked hazelnut Fire-resistant Corylus cornuta -
European filbert Fire-resistant Corylus colurna
About hazelnuts
Corpus context. Corylus is the directory's #150 largest of 550 genus groups: 5 records carrying 27 evidence rows from 17 cited sources, recorded as shrub, tree , hardy across USDA zones 2–5. Those are corpus facts, not a whole-genus flammability claim.
More about Corylus: Wikipedia — external references; not evidence sources.