North America Native Plant

Ibex Buckwheat

Botanical name: Eriogonum ammophilum

USDA symbol: ERAM6

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Eriogonum nummulare M.E. Jones var. ammophilum (Reveal) S.L. Welsh (ERNUA2)   

Ibex Buckwheat: A Rare Utah Native Perfect for Desert Gardens Meet the ibex buckwheat (Eriogonum ammophilum), a charming little perennial that’s as tough as the rugged Utah landscape it calls home. This native gem might not be the showiest plant in your garden, but what it lacks in size, it ...

Rare plant alert!

Region: Conservation status by state

Status: S1Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ 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) ⚘

Ibex Buckwheat: A Rare Utah Native Perfect for Desert Gardens

Meet the ibex buckwheat (Eriogonum ammophilum), a charming little perennial that’s as tough as the rugged Utah landscape it calls home. This native gem might not be the showiest plant in your garden, but what it lacks in size, it makes up for in resilience and ecological value.

What Makes Ibex Buckwheat Special?

Ibex buckwheat is a low-growing forb that forms dense mats of tiny leaves topped with clusters of delicate white to cream-colored flowers. As a member of the buckwheat family, it shares the characteristic papery, long-lasting blooms that add subtle beauty to any native plant collection. Don’t let its modest appearance fool you – this little powerhouse is perfectly adapted to some of the harshest growing conditions imaginable.

Where Does It Come From?

This special plant is found exclusively in Utah, making it a true endemic species. It thrives in the sandy soils and arid conditions of southeastern Utah, where it has evolved to survive in one of North America’s most challenging environments.

A Word About Rarity

Here’s something important to know: ibex buckwheat has a conservation status of S1Q, which indicates it’s quite rare in the wild. If you’re considering adding this plant to your garden, please make sure you source it responsibly from reputable native plant nurseries that propagate their stock rather than wild-collecting. Never dig plants from the wild – this threatens the survival of already vulnerable populations.

Why Grow Ibex Buckwheat?

There are several compelling reasons to consider this Utah native:

  • Pollinator magnet: Those small flowers are beloved by native bees and other beneficial insects
  • Ultra-low maintenance: Once established, it requires virtually no care
  • Drought champion: Perfect for water-wise landscaping
  • Unique ground cover: Creates interesting textural contrast in rock gardens
  • Conservation value: Growing rare natives helps preserve genetic diversity

Perfect Garden Situations

Ibex buckwheat shines in specialized garden settings:

  • Desert and xeric gardens
  • Rock gardens and scree slopes
  • Native plant collections
  • Naturalized areas with sandy soil
  • Areas where you want interesting texture without high water needs

Growing Conditions and Care

Think desert survival mode when planning for ibex buckwheat:

  • Soil: Sandy, extremely well-draining soil is essential – this plant will rot in heavy or moist conditions
  • Sun: Full sun exposure
  • Water: Minimal water once established; drought-tolerant to the extreme
  • Climate zones: Best suited for USDA zones 4-8, matching its native Utah range

Planting and Care Tips

Successfully growing ibex buckwheat is all about mimicking its natural habitat:

  • Ensure excellent drainage – consider raised beds or slopes if your soil is heavy
  • Add sand or gravel to improve soil drainage if needed
  • Plant in spring after the last frost
  • Water sparingly during establishment, then rely on natural precipitation
  • Avoid fertilizers – this plant is adapted to poor soils
  • Propagate from seed when possible, as this plant can be challenging to transplant

The Bottom Line

Ibex buckwheat isn’t for every garden or every gardener. It requires specific conditions and won’t give you the bold colors of more common perennials. However, if you’re passionate about native plants, conservation, and creating habitat for local wildlife, this rare Utah endemic could be a meaningful addition to your landscape. Just remember to source it responsibly and give it the sandy, dry conditions it craves. In return, you’ll have a resilient, ecologically valuable plant that connects your garden to the wild landscapes of the American Southwest.

Ibex 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 ammophilum Reveal - ibex buckwheat

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