tuberous vervain (Verbena rigida Spreng.)
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↑Range - Expand
| Legend | Color |
| Introduced | |
| Introduced or Not Present |
This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.
Although this plant occurs somewhere in each of these regions, it may only occur in a small part of some or all of them.
↑Links & External Resources
• Verbena rigida (tuberous vervain) | USDA PLANTS Database (About This Site)
• Slender Vervain | iNaturalist (About This Site)
• Verbena rigida (stiff verbena) | CABI Invasive Species Compendium (About This Site)
• Verbena rigida | Biota of North America Project (BONAP) (About This Site)
• Verbena rigida | NatureServe Explorer (About This Site)
• Verbena rigida Spreng. (Slender Vervain, Tuberous Vervain) | Digital Atlas of the Virginia Flora (About This Site)
