North America Native Plant

Pendleton’s Eryngo

Botanical name: Eryngium pendletonensis

USDA symbol: ERPE19

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Pendleton’s Eryngo: A Mysterious California Native Worth Investigating If you’re a California gardener who loves discovering unique native plants, you might have stumbled across the intriguing name Pendleton’s eryngo (Eryngium pendletonensis). This native California perennial belongs to the fascinating world of eryngos – those spiky, architectural plants that look like ...

Pendleton’s Eryngo: A Mysterious California Native Worth Investigating

If you’re a California gardener who loves discovering unique native plants, you might have stumbled across the intriguing name Pendleton’s eryngo (Eryngium pendletonensis). This native California perennial belongs to the fascinating world of eryngos – those spiky, architectural plants that look like they’ve stepped out of a fairy tale.

What Makes Pendleton’s Eryngo Special?

Pendleton’s eryngo is a herbaceous perennial forb, which simply means it’s a non-woody plant that comes back year after year. Like other members of the Eryngium family, it likely sports the characteristic spiky flower heads and deeply cut leaves that make these plants such showstoppers in the garden.

As a California native, this plant has evolved specifically for our Golden State’s unique climate and conditions, making it theoretically well-suited for water-wise, sustainable gardening practices.

Where Does It Come From?

This eryngo calls California home, though the exact regions within the state where it naturally occurs aren’t well-documented in readily available sources. Being a native plant means it has deep roots in our local ecosystems – quite literally!

The Mystery Factor

Here’s where things get interesting (and a bit mysterious): Pendleton’s eryngo appears to be quite rare, with limited information available about its specific growing requirements, appearance, and distribution. This rarity could mean several things:

  • It might be an extremely localized endemic species
  • It could be critically endangered
  • It may be a recently described species with limited research

Should You Plant Pendleton’s Eryngo?

The short answer is: proceed with extreme caution. While supporting native plants is always admirable, the rarity and limited information about this species raises some important considerations:

  • Sourcing concerns: Any plant material should come from reputable, responsible sources that don’t harvest from wild populations
  • Growing knowledge: Without clear growing guidelines, success may be challenging
  • Conservation impact: If it’s truly rare, home gardening might not be appropriate

Better-Known Alternatives

If you’re drawn to the unique appeal of eryngos, consider these well-documented California native alternatives:

  • Coast eryngo (Eryngium armatum): A stunning coastal native with silvery-blue flowers
  • Button eryngo (Eryngium aristulatum): Perfect for meadow-style plantings
  • Coyote thistle (Eryngium vaseyi): Another spiky beauty that’s more readily available

The Bottom Line

While Pendleton’s eryngo sounds like it could be a fascinating addition to a native plant collection, the lack of available information and potential rarity status means it’s not the best choice for most home gardeners right now. Instead, focus on supporting well-documented California natives that you can grow successfully while contributing to local ecosystem health.

If you’re a serious native plant enthusiast or researcher interested in this species, consider connecting with local native plant societies, botanical gardens, or university extension programs who might have more detailed information about this elusive eryngo.

Sometimes the most responsible thing we can do as gardeners is admire a plant from afar while choosing more suitable alternatives for our landscapes. Your garden – and California’s native ecosystems – will thank you for it!

Pendleton’s Eryngo

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Apiales

Family

Apiaceae Lindl. - Carrot family

Genus

Eryngium L. - eryngo

Species

Eryngium pendletonensis K.L. Marsden & M.G. Simpson - Pendleton's eryngo

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