North America Native Plant

Leedy’s Stonecrop

Botanical name: Rhodiola integrifolia leedyi

USDA symbol: RHINL

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Sedum integrifolium (Raf.) A. Nelson ssp. leedyi (Rosend. & J.W. Moore) R.T. Clausen (SEINL)  âš˜  Sedum rosea (L.) Scop. var. leedyi Rosend. & J.W. Moore (SEROL)  âš˜  Sedum roseum (L.) Scop. var. leedyi Rosend. & J.W. Moore, orth. var. (SEROL2)   

Leedy’s Stonecrop: A Rare Native Treasure That Needs Our Protection If you’ve stumbled across the name Leedy’s stonecrop (Rhodiola integrifolia leedyi) in your plant research, you’ve discovered one of North America’s botanical rarities. This isn’t your typical let’s add it to the garden cart kind of plant – it’s a ...

Rare plant alert!

Region: United States

Status: S5T1: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘ Threatened: Experiencing significant population decline or habitat loss that could lead to its endangerment if not addressed. ⚘

Region: United States

Leedy’s Stonecrop: A Rare Native Treasure That Needs Our Protection

If you’ve stumbled across the name Leedy’s stonecrop (Rhodiola integrifolia leedyi) in your plant research, you’ve discovered one of North America’s botanical rarities. This isn’t your typical let’s add it to the garden cart kind of plant – it’s a conservation story that every native plant enthusiast should know about.

What Makes Leedy’s Stonecrop Special?

Leedy’s stonecrop is a perennial forb, which simply means it’s a soft-stemmed plant that comes back year after year without developing woody tissue like trees and shrubs. As a member of the Rhodiola family, it’s related to some fascinating succulent-like plants, though this particular variety has its own unique characteristics.

This plant carries quite a few scientific aliases from its taxonomic journey, including several Sedum classifications, but today we know it as Rhodiola integrifolia leedyi – a name that honors both its botanical relationships and its discoverers.

Where Does It Call Home?

Here’s where things get really interesting (and concerning). Leedy’s stonecrop is native to the lower 48 states, but its current range is incredibly limited. You’ll only find this rare beauty in two states: Minnesota and New York. That tiny geographic footprint is already telling us this plant needs our attention.

The Conservation Reality Check

Let’s talk about the elephant in the room – or rather, the absence of elephants in the room. Leedy’s stonecrop carries a Threatened status in the United States, which means this plant is walking a tightrope toward potential extinction. With a global conservation ranking that reflects its precarious position, this isn’t a plant you’ll find at your local nursery.

Important: If you’re excited about growing native plants and supporting biodiversity, that enthusiasm is wonderful! However, Leedy’s stonecrop requires a completely different approach than typical native gardening.

Should You Grow Leedy’s Stonecrop?

Here’s the honest answer: probably not, unless you’re involved in legitimate conservation efforts. This plant’s threatened status means that:

  • Wild populations need protection, not harvesting
  • Seeds and plants should only come from verified conservation programs
  • Growing it requires specialized knowledge about its specific needs
  • Your garden energy might be better invested in other native species

What We Don’t Know (And Why That Matters)

One of the challenges with rare plants like Leedy’s stonecrop is that much of their biology remains a mystery. We don’t have detailed information about their preferred growing conditions, pollinator relationships, or specific care requirements. This knowledge gap exists precisely because the plants are so uncommon that researchers have limited opportunities to study them.

Better Alternatives for Your Native Garden

Instead of seeking out this rare treasure, consider supporting conservation by growing other native Rhodiola or Sedum species that are more readily available and better understood. These alternatives can provide similar ecological benefits without putting pressure on threatened populations.

How You Can Help

Want to support Leedy’s stonecrop and plants like it? Here are meaningful ways to contribute:

  • Support organizations working on native plant conservation
  • Choose abundant native species for your garden projects
  • Learn about and protect natural habitats in your area
  • Spread awareness about the importance of plant conservation

The Bigger Picture

Leedy’s stonecrop represents something bigger than just one rare plant – it’s a reminder that North America’s native flora includes species hanging on by threads in tiny pockets of remaining habitat. Every threatened plant species tells a story about habitat loss, climate change, and the importance of conservation.

While you might not have Leedy’s stonecrop gracing your garden beds, knowing about it makes you part of a community that values and protects our botanical heritage. And that’s pretty special in itself.

Sometimes the best way to love a plant is to let it be wild and work to ensure it stays that way for future generations to discover and protect.

Leedy’s Stonecrop

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

Crassulaceae J. St.-Hil. - Stonecrop family

Genus

Rhodiola L. - stonecrop

Species

Rhodiola integrifolia Raf. - ledge stonecrop

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