North America Native Plant

Tiehm’s Buckwheat

Botanical name: Eriogonum tiehmii

USDA symbol: ERTI

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Tiehm’s Buckwheat: A Rare Nevada Treasure Worth Protecting Meet Tiehm’s buckwheat (Eriogonum tiehmii), one of Nevada’s most endangered native plants and a true botanical rarity. This unassuming little perennial might not win any flashy flower contests, but it holds a special place in the hearts of conservationists and native plant ...

Rare plant alert!

Region: Conservation status by state

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) ⚘

Tiehm’s Buckwheat: A Rare Nevada Treasure Worth Protecting

Meet Tiehm’s buckwheat (Eriogonum tiehmii), one of Nevada’s most endangered native plants and a true botanical rarity. This unassuming little perennial might not win any flashy flower contests, but it holds a special place in the hearts of conservationists and native plant enthusiasts who understand its incredible story of survival and vulnerability.

A Plant on the Brink

Before we dive into growing tips, let’s address the elephant in the room: Tiehm’s buckwheat is critically imperiled with a Global Conservation Status of S1. This means there are typically only five or fewer known populations, with less than 1,000 individuals remaining in the wild. If you’re considering adding this plant to your garden, please ensure you source it only from reputable nurseries that propagate from legally obtained, ethically sourced material—never collect from wild populations.

Where in the World?

This rare gem calls Nevada home, with an extremely limited native range that makes it one of the state’s most geographically restricted plants. Its tiny footprint in the Silver State makes every single plant precious for maintaining genetic diversity and species survival.

What Does It Look Like?

Tiehm’s buckwheat is a perennial forb, meaning it’s an herbaceous plant that comes back year after year without developing woody stems. Don’t expect a towering garden specimen—this little survivor stays low and compact, perfectly adapted to its harsh desert environment. The plant produces clusters of small, cream to white flowers that may seem modest but play a crucial role in supporting local pollinators.

Garden Appeal and Uses

While Tiehm’s buckwheat won’t provide the dramatic flair of showier natives, it offers something far more valuable: a direct connection to conservation efforts and Nevada’s unique botanical heritage. This plant is best suited for:

  • Specialized native plant collections
  • Conservation-focused gardens
  • Educational landscapes about rare plants
  • Rock gardens with excellent drainage

Growing Conditions

If you’re fortunate enough to obtain responsibly sourced plants or seeds, Tiehm’s buckwheat requires very specific conditions that mirror its native habitat:

  • Soil: Exceptional drainage is non-negotiable—think sandy, gravelly, or rocky soils
  • Sun: Full sun exposure
  • Water: Minimal irrigation once established; this plant thrives in arid conditions
  • Climate: Hardy in approximately USDA zones 4-8, adapted to desert temperature fluctuations

Planting and Care Tips

Growing Tiehm’s buckwheat successfully requires patience and attention to its specialized needs:

  • Plant in spring after the last frost
  • Ensure perfect drainage—consider raised beds or rock gardens if your soil holds moisture
  • Water sparingly, allowing soil to dry completely between waterings
  • Avoid fertilizers, which can harm this adapted-to-poor-soils species
  • Protect from foot traffic and disturbance
  • Mulch lightly with gravel rather than organic materials

Supporting Pollinators

Despite its small stature, Tiehm’s buckwheat provides valuable nectar and pollen for native bees and other small pollinators. Every flower cluster becomes a tiny restaurant for these important insects, making this rare plant a contributor to local ecosystem health.

The Bottom Line

Should you grow Tiehm’s buckwheat? Only if you’re committed to conservation, have the right growing conditions, and can source plants responsibly. This isn’t a plant for casual gardeners—it’s for those who understand that sometimes the most important plants aren’t the prettiest ones, but the ones that need our help the most.

By growing Tiehm’s buckwheat in your garden, you become part of its conservation story. Just remember: this tiny plant carries the weight of an entire species on its delicate shoulders, so treat it with the respect and care it deserves.

Tiehm’s 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 tiehmii Reveal - Tiehm's buckwheat

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