Jacob's Ladder (Polemonium reptans L.)
Also known as Greek valerian.
↑Range - Expand
| Legend | Color |
| Native | |
| Native or Not Present | |
| Native or Expanded |
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.
↑Notes
Although there is a well-defined gap between this species newly-established range in New England and its native range, and although this species got established in New England from garden escapes, we have marked it as expanded rather than introduced because the distance of separation is small.
↑Links & External Resources
• Polemonium reptans (Jacob's Ladder) | Illinois Wildflowers (About This Site)
• Polemonium reptans (Greek valerian) | USDA PLANTS Database (About This Site)
• Polemonium reptans | Go Botany (About This Site)
• Polemonium reptans (Jacob's Ladder) | Missouri Botanical Garden Plant Finder (About This Site)
• Polemonium reptans | Biota of North America Project (BONAP) (About This Site)
• Polemonium reptans | NatureServe Explorer (About This Site)
• Polemonium reptans | Missouri Plants (About This Site)
• Greek Valerian | Maryland Biodiversity Project (About This Site)
• Polemonium reptans (Spreading Jacob's Ladder) | Minnesota Wildflowers (About This Site)
• Polemonium reptans L. var. reptans (Spreading Jacob's Ladder, Greek Valerian) | Digital Atlas of the Virginia Flora (About This Site)
