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Alumroots
Every rated Heuchera record is fire-resistant — 2 of 3 records, including the genus rated as a group; none is condemned. These counts describe the cited records — 3 records carrying 19 evidence rows from 17 cited sources; they do not make one verdict for the genus.
Rated as a group: Coral bells Heuchera Fire-resistant Consensus 10 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
1 species
Awaiting evidence
1 species
About alumroots
Corpus context. Heuchera is the directory's #301 largest of 550 genus groups: 3 records carrying 19 evidence rows from 17 cited sources, recorded as perennial , hardy across USDA zones 3–8. Those are corpus facts, not a whole-genus flammability claim.
More about Heuchera: Wikipedia — external references; not evidence sources.