North America Native Plant

Irion County Buckwheat

Botanical name: Eriogonum nealleyi

USDA symbol: ERNE5

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Irion County Buckwheat: A Rare Texas Treasure Worth Protecting Meet Irion County buckwheat (Eriogonum nealleyi), one of Texas’s rarest wildflowers and a true botanical gem hiding in the Lone Star State’s landscape. This perennial forb might not be a household name, but for native plant enthusiasts and conservation-minded gardeners, it ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Irion County Buckwheat: A Rare Texas Treasure Worth Protecting

Meet Irion County buckwheat (Eriogonum nealleyi), one of Texas’s rarest wildflowers and a true botanical gem hiding in the Lone Star State’s landscape. This perennial forb might not be a household name, but for native plant enthusiasts and conservation-minded gardeners, it represents something special: a piece of Texas’s natural heritage that desperately needs our help.

A Native with a Story

Irion County buckwheat is as Texan as they come—this species is native to the lower 48 states and calls only Texas home. Its extremely limited range makes it a true endemic, found in a small area associated with its namesake county in west-central Texas.

Why This Plant Matters (And Why You Should Care)

Here’s where things get serious: Eriogonum nealleyi carries a Global Conservation Status of S2, meaning it’s imperiled. With only 6 to 20 known occurrences and fewer than 3,000 remaining individuals, this little buckwheat is walking a tightrope toward extinction. Every plant matters when numbers are this low.

Important Conservation Note: If you’re considering growing Irion County buckwheat, only source it from reputable native plant nurseries that use responsibly collected seed or propagated material—never wild-harvest this rare species.

What You’re Getting

As a member of the buckwheat family, this perennial forb lacks significant woody tissue, instead growing as an herbaceous plant that returns each year from its root system. Like its buckwheat cousins, it likely produces clusters of small flowers that add delicate beauty to the landscape—though specific details about its appearance remain limited due to its rarity.

Growing Conditions (Best Educated Guesses)

While specific growing requirements for Eriogonum nealleyi are largely undocumented, we can make informed assumptions based on its Texas origin and relationship to other buckwheat species:

  • Full sun exposure
  • Well-draining, rocky or sandy soils
  • Drought tolerance once established
  • Minimal water requirements
  • Likely hardy in USDA zones typical of west-central Texas (approximately zones 7-8)

Garden Role and Landscape Use

If you’re lucky enough to source this rare beauty, treat it as a conservation showcase plant. It would be perfect for:

  • Native plant gardens focused on Texas endemics
  • Rock gardens with excellent drainage
  • Xeriscaping projects
  • Conservation education displays

The Conservation Garden Approach

Growing Irion County buckwheat isn’t just gardening—it’s participating in conservation. By cultivating this species responsibly, you’re helping ensure genetic diversity survives outside its tiny natural range. Think of your garden as a conservation ark for rare Texas plants.

Planting and Care Tips

Given the limited information available, approach growing this species with the general care techniques that work for other Texas buckwheats:

  • Plant in spring or fall when temperatures are moderate
  • Ensure exceptional drainage—these plants hate wet feet
  • Water sparingly, if at all, once established
  • Avoid fertilizing, as most native Texas plants prefer lean soils
  • Be patient—rare plants often grow slowly

The Bottom Line

Should you grow Irion County buckwheat? If you can source it responsibly, absolutely—but approach it as a conservation project rather than a typical garden plant. This rare Texas endemic needs gardeners who understand they’re not just growing a pretty flower, but helping preserve a piece of natural heritage that could disappear forever.

Remember, with great plants comes great responsibility. When dealing with species this rare, every seed, every plant, and every garden becomes part of a larger conservation story. Are you ready to be part of saving Texas’s botanical treasures?

Irion County Buckwheat

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Polygonales

Family

Polygonaceae Juss. - Buckwheat family

Genus

Eriogonum Michx. - buckwheat

Species

Eriogonum nealleyi J.M. Coult. - Irion County buckwheat

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