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Elms
Every rated Ulmus record is fire-resistant — 9 of 11 records, including the genus rated as a group; none is condemned. These counts describe the cited records — 11 records carrying 53 evidence rows from 19 cited sources; they do not make one verdict for the genus.
Rated as a group: Elm (species) Ulmus spp. Fire-resistant Limited evidence 4 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
8 species
-
American elm Fire-resistant Ulmus americana -
Siberian elm Fire-resistant Ulmus pumila -
Winged elm Fire-resistant Ulmus alata -
Lacebark elm Fire-resistant Ulmus parvifolia - Álamo Fire-resistant Ulmus minor
-
Slippery elm Fire-resistant Ulmus rubra -
Smoothleaf elm Fire-resistant Ulmus carpinifolia -
Wilson Elm Fire-resistant Ulmus wilsoniana
Awaiting evidence
2 species
- Ulmus laciniata Awaiting evidence Ulmus laciniata
- Ulmus macrocarpa Awaiting evidence Ulmus macrocarpa
About elms
Corpus context. Ulmus is the directory's #53 largest of 550 genus groups: 11 records carrying 53 evidence rows from 19 cited sources, recorded as shrub, tree , hardy across USDA zones 4–5. Those are corpus facts, not a whole-genus flammability claim.
More about Ulmus: Wikipedia — external references; not evidence sources.