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Hollyferns
Every rated Polystichum record is fire-resistant — 2 of 5 records; none is condemned. These counts describe the cited records — 5 records carrying 21 evidence rows from 7 cited sources; they do not make one verdict for the genus.
Fire-resistant
2 species
Awaiting evidence
3 species
- Polystichum chilense Awaiting evidence Polystichum chilense
- Mother Shield Fern Awaiting evidence Polystichum proliferum
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Mountain shield fern Awaiting evidence Polystichum cystostegia
About hollyferns
Corpus context. Polystichum is the directory's #170 largest of 550 genus groups: 5 records carrying 21 evidence rows from 7 cited sources, recorded as perennial , hardy across USDA zones 3–9. Those are corpus facts, not a whole-genus flammability claim.
More about Polystichum: Wikipedia — external references; not evidence sources.