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Vervains
The rated Verbena records split: 1 fire-resistant, 1 keep-away, 0 in documented conflict. These counts describe the cited records — 4 records carrying 11 evidence rows from 7 cited sources; they do not make one verdict for the genus.
Rated as a group: Vervain Verbena spp. Keep away Limited evidence 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
1 species
Awaiting evidence
2 species
- Verbena rigida Awaiting evidence Verbena rigida
- Homestead Purple Verbena Awaiting evidence Verbena peruviana
About vervains
Corpus context. Verbena is the directory's #243 largest of 550 genus groups: 4 records carrying 11 evidence rows from 7 cited sources, recorded as perennial, groundcover , hardy across USDA zones 3–9. Those are corpus facts, not a whole-genus flammability claim.
More about Verbena: Wikipedia — external references; not evidence sources.