North America Non-native Plant

Eriogonum Hastatum

Botanical name: Eriogonum hastatum

USDA symbol: ERHA4

Native status: Not native but doesn't reproduce and persist in the wild

Eriogonum hastatum: The Mysterious Buckwheat If you’ve stumbled upon the name Eriogonum hastatum while researching native plants, you might be scratching your head trying to find information about this elusive member of the buckwheat family. Don’t worry – you’re not alone in your confusion! This particular species name presents quite ...

Eriogonum hastatum: The Mysterious Buckwheat

If you’ve stumbled upon the name Eriogonum hastatum while researching native plants, you might be scratching your head trying to find information about this elusive member of the buckwheat family. Don’t worry – you’re not alone in your confusion! This particular species name presents quite the botanical puzzle.

The Mystery Behind the Name

Here’s where things get interesting (and a bit frustrating for plant enthusiasts): Eriogonum hastatum doesn’t appear in current major botanical databases or flora guides. This could mean several things – it might be an outdated scientific name, a regional variation that’s been reclassified, or simply a name that’s fallen out of use in modern taxonomy.

The genus Eriogonum, commonly known as wild buckwheat, is a large and diverse group of native North American plants beloved by gardeners and pollinators alike. With over 250 species in this genus, it’s not uncommon for names to change or for species to be merged or split as our understanding of plant relationships evolves.

What We Know About Wild Buckwheats

While we can’t provide specific details about Eriogonum hastatum, we can share what makes the Eriogonum genus special:

  • Most species are native to western North America
  • They’re drought-tolerant champions perfect for water-wise gardens
  • Their flowers are pollinator magnets, especially for native bees and butterflies
  • They typically prefer well-draining soils and full sun
  • Many species bloom from summer into fall, providing late-season nectar

So, Should You Plant It?

Here’s our honest recommendation: if you’re looking for a reliable native plant for your garden, we’d suggest focusing on well-documented Eriogonum species instead. There are plenty of fantastic options like California buckwheat (Eriogonum fasciculatum), sulfur flower (Eriogonum umbellatum), or desert trumpet (Eriogonum inflatum), depending on your location.

Finding the Right Buckwheat for Your Garden

Rather than chasing after a mysterious species, here’s how to find the perfect Eriogonum for your space:

  • Contact your local native plant society or extension office
  • Visit a reputable native plant nursery in your area
  • Check which Eriogonum species are native to your specific region
  • Consider your garden’s conditions – soil type, water availability, and sun exposure

The Bottom Line

While Eriogonum hastatum remains a botanical mystery, don’t let that discourage you from exploring the wonderful world of wild buckwheats. These plants are some of the best choices for sustainable, wildlife-friendly gardens. Just make sure to choose species that are well-documented and appropriate for your local conditions.

Remember, successful native gardening is about working with plants that have a proven track record in your area. When in doubt, consult with local experts who can guide you toward the buckwheat species that will truly thrive in your garden while supporting local wildlife.

Eriogonum Hastatum

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 hastatum Wiggins [excluded]

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