North America Native Plant

Welsh’s Buckwheat

Botanical name: Eriogonum capistratum var. welshii

USDA symbol: ERCAW2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Welsh’s Buckwheat: A Rare Idaho Native Worth Protecting in Your Garden If you’re looking to add a touch of Idaho’s wild beauty to your garden while supporting conservation efforts, Welsh’s buckwheat (Eriogonum capistratum var. welshii) might just be the perfect plant for you. This charming native perennial represents a unique ...

Rare plant alert!

Region: Conservation status by state

Status: S4T2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Subspecies or variety is 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) ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Welsh’s Buckwheat: A Rare Idaho Native Worth Protecting in Your Garden

If you’re looking to add a touch of Idaho’s wild beauty to your garden while supporting conservation efforts, Welsh’s buckwheat (Eriogonum capistratum var. welshii) might just be the perfect plant for you. This charming native perennial represents a unique piece of the American West’s botanical heritage, though it comes with some important considerations for the responsible gardener.

What Makes Welsh’s Buckwheat Special?

Welsh’s buckwheat is a perennial forb, which means it’s a non-woody plant that returns year after year. As part of the diverse Eriogonum genus (commonly known as wild buckwheats), this variety carries the distinctive characteristics that make these plants such treasures in native landscapes. Unlike their woody cousins, forbs like Welsh’s buckwheat maintain their perennating buds at or below ground level, making them well-adapted to harsh conditions.

Where Does Welsh’s Buckwheat Call Home?

This native beauty is exclusively found in Idaho, making it a true regional specialty. As a plant native to the lower 48 states, it represents an important part of Idaho’s natural heritage and biodiversity.

A Word of Caution: Rarity Matters

Before you rush to plant Welsh’s buckwheat, there’s something crucial to know: this plant has a Global Conservation Status of S4T2Q. While the exact definition of this status is somewhat unclear, any conservation ranking suggests this plant may face population pressures in the wild. This makes responsible sourcing absolutely essential.

If you choose to grow Welsh’s buckwheat, please ensure you obtain plants or seeds only from reputable native plant nurseries that use ethically collected, responsibly propagated material. Never collect from wild populations.

Growing Welsh’s Buckwheat: What We Know

While specific growing requirements for this particular variety aren’t well-documented, we can draw from general knowledge about Eriogonum species to provide some guidance:

  • Soil: Most wild buckwheats prefer well-draining, sandy or rocky soils
  • Water: These plants typically thrive with minimal water once established
  • Sun: Full sun exposure is usually preferred
  • Climate: Being native to Idaho, it’s adapted to that region’s climate conditions

Why Consider Welsh’s Buckwheat for Your Garden?

Despite the limited information available, there are compelling reasons to consider this native plant:

  • Conservation impact: Growing rare natives helps preserve genetic diversity
  • Regional authenticity: Perfect for Idaho gardeners wanting true local natives
  • Low maintenance potential: Most Eriogonum species are drought-tolerant once established
  • Educational value: A conversation starter about native plant conservation

Garden Design Applications

While specific design recommendations are limited due to unknown mature size and form, Welsh’s buckwheat would likely work well in:

  • Native plant gardens focusing on Idaho species
  • Rock gardens or xeriscapes
  • Conservation-focused landscapes
  • Educational or demonstration gardens

The Bottom Line

Welsh’s buckwheat represents both an opportunity and a responsibility. While it could be a wonderful addition to the right garden, its potential rarity status means it requires careful consideration. If you’re an Idaho gardener passionate about native plants and conservation, and you can source this plant responsibly, it could be a meaningful addition to your landscape.

However, if you’re simply looking for easy-to-grow native buckwheats, you might consider more common Eriogonum species that don’t carry conservation concerns. The choice is yours, but whatever you decide, make sure it’s made with both your garden’s needs and the plant’s wild future in mind.

Remember: When in doubt, consult with local native plant societies or conservation organizations for the most current information about growing and sourcing rare native plants in your area.

Welsh’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 capistratum Reveal - hidden buckwheat

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