North America Native Plant

Malheur Wirelettuce

Botanical name: Stephanomeria malheurensis

USDA symbol: STMA5

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Malheur Wirelettuce: A Rare Desert Beauty Worth Protecting Meet Malheur wirelettuce (Stephanomeria malheurensis), one of Oregon’s most endangered botanical treasures. This delicate wildflower might not be on every gardener’s wishlist, but its story is absolutely fascinating – and its conservation status makes it one of the most important plants you’ve ...

Rare plant alert!

Region: United States

Status: S1: Status is uncertain but is somewhere between the following rankings: 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) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Malheur Wirelettuce: A Rare Desert Beauty Worth Protecting

Meet Malheur wirelettuce (Stephanomeria malheurensis), one of Oregon’s most endangered botanical treasures. This delicate wildflower might not be on every gardener’s wishlist, but its story is absolutely fascinating – and its conservation status makes it one of the most important plants you’ve probably never heard of.

What Makes This Plant So Special?

Malheur wirelettuce is what botanists call a forb – essentially a non-woody flowering plant that comes back year after year (it can be both annual and perennial depending on conditions). Picture a wispy, delicate plant with thin, wire-like stems that give it its common name. The small white to pale pink flowers might seem modest, but they’re absolutely crucial to the ecosystem of southeastern Oregon’s high desert.

Where Does It Call Home?

This little plant is what we call an endemic species – it exists naturally in only one place on Earth: southeastern Oregon, particularly in Malheur County. Talk about putting all your eggs in one basket! Its entire world consists of a small area of high desert habitat, which makes it incredibly vulnerable.

The Reality Check: Why You Probably Shouldn’t Grow This

Here’s where we need to have a serious conversation. Malheur wirelettuce carries a Global Conservation Status of S1, which means it’s critically imperiled. In the United States, it’s officially listed as Endangered. This isn’t just rare – this is hanging on by a thread rare, with typically five or fewer known populations and fewer than 1,000 individuals remaining in the wild.

What does this mean for gardeners? Simply put, this isn’t a plant for your average backyard garden. Growing Malheur wirelettuce should only be attempted as part of serious conservation efforts, and only with plant material that has been responsibly sourced through legitimate conservation programs.

If You’re Serious About Conservation Growing

For those involved in legitimate conservation efforts or working with botanical institutions, here’s what Malheur wirelettuce needs:

  • Excellent drainage – this high desert native cannot tolerate wet feet
  • Full sun exposure
  • Minimal supplemental watering once established
  • Well-draining, sandy or gravelly soils that mimic its natural habitat
  • USDA hardiness zones 6-8 (estimated based on its native range)
  • Protection from competition with more aggressive plants

Supporting Pollinators the Right Way

While Malheur wirelettuce likely provides nectar for small native bees and other pollinators, there are much better ways to support Oregon’s pollinators without risking harm to endangered species. Consider these responsible alternatives that are native to Oregon:

  • Oregon sunshine (Eriophyllum lanatum)
  • Showy fleabane (Erigeron speciosus)
  • Blanket flower (Gaillardia aristata)
  • Western yarrow (Achillea millefolium var. occidentalis)

How You Can Really Help

The best thing most gardeners can do for Malheur wirelettuce isn’t growing it – it’s supporting the organizations working to protect its habitat. Consider donating to or volunteering with:

  • The Oregon Native Plant Society
  • Local land trusts in southeastern Oregon
  • Botanical gardens with conservation programs
  • The Bureau of Land Management’s habitat restoration projects

The Bigger Picture

Malheur wirelettuce serves as a reminder of how unique and fragile our native ecosystems really are. While we can’t all grow this particular plant in our backyards, we can all play a role in conservation by choosing responsible native alternatives, supporting habitat protection, and spreading awareness about endangered species.

Sometimes the most loving thing we can do for a plant is to admire it from afar and work to protect the wild places where it belongs. That’s true garden wisdom right there.

Malheur Wirelettuce

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Stephanomeria Nutt. - wirelettuce

Species

Stephanomeria malheurensis Gottlieb - Malheur wirelettuce

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