North America Native Plant

Hybrid Rose

Botanical name: Rosa ×palustriformis

USDA symbol: ROPA4

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Hybrid Rose (Rosa ×palustriformis): A Garden Mystery Worth Investigating If you’ve stumbled across the name Rosa ×palustriformis while researching native plants, you might be scratching your head—and for good reason! This particular hybrid rose is something of a botanical enigma that even experienced gardeners and plant researchers struggle to pin ...

Hybrid Rose (Rosa ×palustriformis): A Garden Mystery Worth Investigating

If you’ve stumbled across the name Rosa ×palustriformis while researching native plants, you might be scratching your head—and for good reason! This particular hybrid rose is something of a botanical enigma that even experienced gardeners and plant researchers struggle to pin down.

What We Know (And What We Don’t)

Rosa ×palustriformis is listed as a perennial hybrid rose native to the lower 48 states, with documented populations in Maine, Michigan, New York, Ohio, and Wisconsin. The × symbol in its name tells us it’s a hybrid—meaning it’s the result of two different rose species crossing, either naturally or through human intervention.

According to available data, this rose is a compact little character, staying under 1.5 feet tall and never exceeding 3 feet at maturity. That would make it quite the charming addition to any garden if you could actually find it!

The Plot Thickens

Here’s where things get interesting (and a bit frustrating): despite being listed in some databases, Rosa ×palustriformis seems to exist more on paper than in actual gardens. Extensive searches through botanical literature, native plant societies, and horticultural sources turn up virtually no concrete information about this mysterious rose.

This could mean several things:

  • It’s an extremely rare local hybrid that hasn’t been widely studied or cultivated
  • The name might be outdated or incorrectly applied
  • It could be a naturally occurring hybrid that’s been observed but not extensively documented

What This Means for Gardeners

If you’re hoping to add Rosa ×palustriformis to your native plant garden, you’re likely to face some challenges. Without clear identification characteristics, growing requirements, or reliable sources, tracking down this particular rose is like searching for a needle in a haystack.

Better Alternatives for Your Garden

Instead of chasing this elusive hybrid, consider these well-documented native roses that thrive in similar regions:

  • Rosa carolina (Carolina Rose): A lovely native rose perfect for naturalizing
  • Rosa palustris (Swamp Rose): Great for wet areas and attracts pollinators
  • Rosa blanda (Smooth Wild Rose): Hardy and adaptable with beautiful pink blooms

These alternatives offer the charm of native roses with the added benefit of being readily available and well-understood by gardeners and nurseries.

The Takeaway

While Rosa ×palustriformis remains a botanical mystery, this situation highlights an important lesson for native plant enthusiasts: always verify plant information through multiple reliable sources before making gardening decisions. Sometimes the most interesting plant stories are the ones that lead us to discover even better alternatives for our gardens!

If you do happen to encounter a plant identified as Rosa ×palustriformis in the wild, consider reaching out to your local botanical society or extension office—you might just be witnessing a rare botanical treasure that deserves proper documentation.

Hybrid Rose

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Rosales

Family

Rosaceae Juss. - Rose family

Genus

Rosa L. - rose

Species

Rosa ×palustriformis Rydb. (pro sp.) [blanda × palustris] - hybrid rose

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA