North America Native Plant

Brownmargin Buckwheat

Botanical name: Eriogonum ovalifolium var. eximium

USDA symbol: EROVE

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Brownmargin Buckwheat: A Rare Nevada Native Worth Knowing If you’re looking to add authentic Nevada character to your garden, brownmargin buckwheat (Eriogonum ovalifolium var. eximium) might just be the hidden gem you’ve been searching for. This charming native perennial brings a touch of the Silver State’s wild beauty right to ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Brownmargin Buckwheat: A Rare Nevada Native Worth Knowing

If you’re looking to add authentic Nevada character to your garden, brownmargin buckwheat (Eriogonum ovalifolium var. eximium) might just be the hidden gem you’ve been searching for. This charming native perennial brings a touch of the Silver State’s wild beauty right to your backyard, though finding it might require a bit of detective work.

What Makes Brownmargin Buckwheat Special?

Brownmargin buckwheat is a true Nevada native, found exclusively in this state. As a member of the buckwheat family, it’s a perennial forb that lacks woody stems but makes up for it with persistent underground parts that help it survive year after year. Think of it as nature’s way of creating a low-maintenance garden resident that knows exactly how to thrive in challenging conditions.

The plant goes by the scientific name Eriogonum ovalifolium var. eximium, and you might occasionally see it listed under its synonym Eriogonum ovalifolium Nutt. ssp. eximium. Whatever you call it, this little beauty deserves more recognition in native plant circles.

Where Does It Come From?

This buckwheat variety calls Nevada home and only Nevada. It’s adapted to the unique conditions found throughout the state, making it a perfect choice for gardeners who want to create landscapes that truly reflect their local ecosystem.

A Word of Caution: Rarity Matters

Here’s something important to know: brownmargin buckwheat has a Global Conservation Status of S5T3. While the exact definition isn’t clear, any conservation status suggests this plant deserves our respect and careful consideration. If you’re interested in growing this species, please make sure you source it responsibly from reputable native plant nurseries or seed suppliers who can guarantee ethical collection practices.

Why Consider Brownmargin Buckwheat for Your Garden?

There are several compelling reasons to give this Nevada native a spot in your landscape:

  • True local native: Supporting plants that naturally occur in your area helps preserve regional biodiversity
  • Perennial reliability: Once established, this plant returns year after year
  • Low-maintenance potential: Native plants typically require less water and care than non-natives
  • Conversation starter: How many people can say they’re growing a plant found only in Nevada?

Garden Design Possibilities

While specific details about this variety’s appearance and size aren’t readily available, buckwheat species are generally excellent choices for:

  • Native plant gardens
  • Rock gardens and xeriscapes
  • Wildlife-friendly landscapes
  • Low-water garden designs

Growing Conditions and Care

Unfortunately, specific growing requirements for this particular variety aren’t well-documented in readily available sources. However, as a Nevada native, it’s likely adapted to:

  • Full sun conditions
  • Well-draining soils
  • Low to moderate water requirements
  • Temperature extremes typical of Nevada’s climate

The Bottom Line

Brownmargin buckwheat represents something special in the gardening world: a plant that’s truly unique to its place. While information about this specific variety is limited, its rarity makes it all the more intriguing for serious native plant enthusiasts.

If you’re committed to creating an authentic Nevada landscape and can source this plant responsibly, brownmargin buckwheat could be a meaningful addition to your garden. Just remember that with rarity comes responsibility – always ensure you’re obtaining plants or seeds through ethical means that don’t impact wild populations.

For gardeners who want similar benefits but with easier availability, consider exploring other Eriogonum species native to your area. The buckwheat family offers many beautiful options that can provide comparable aesthetic and ecological benefits while being more readily available through normal nursery channels.

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 ovalifolium Nutt. - cushion buckwheat

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