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Sumacs
Every rated Rhus record is fire-resistant — 7 of 9 records, including the genus rated as a group; none is condemned. These counts describe the cited records — 9 records carrying 61 evidence rows from 27 cited sources; they do not make one verdict for the genus.
Rated as a group: Sumac Rhus spp. Fire-resistant Consensus 9 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
6 species
-
Staghorn sumac Fire-resistant Rhus typhina -
Smooth sumac Fire-resistant Rhus glabra -
'Gro-Low' fragrant sumac Fire-resistant Rhus aromatica -
Shining sumac Fire-resistant Rhus copallina -
Sumac Fire-resistant Rhus trilobata - Lemonade berry Fire-resistant Rhus integrifolia
Awaiting evidence
2 species
About sumacs
Corpus context. Rhus is the directory's #75 largest of 550 genus groups: 9 records carrying 61 evidence rows from 27 cited sources, recorded as shrub, tree , hardy across USDA zones 2–9. Those are corpus facts, not a whole-genus flammability claim.
More about Rhus: Wikipedia — external references; not evidence sources.