North America Native Plant

Contura Creek Sandmat

Botanical name: Chamaesyce ocellata ocellata

USDA symbol: CHOCO

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Euphorbia ocellata Durand & Hilg. (EUOC3)   

Contura Creek Sandmat: A Mysterious California Native If you’ve stumbled across the name Contura Creek sandmat while researching native California plants, you’ve discovered one of the Golden State’s more enigmatic botanical residents. This annual forb, scientifically known as Chamaesyce ocellata ocellata, is a plant shrouded in mystery – and for ...

Contura Creek Sandmat: A Mysterious California Native

If you’ve stumbled across the name Contura Creek sandmat while researching native California plants, you’ve discovered one of the Golden State’s more enigmatic botanical residents. This annual forb, scientifically known as Chamaesyce ocellata ocellata, is a plant shrouded in mystery – and for good reason.

What We Know About This Native Californian

Contura Creek sandmat belongs to the spurge family and is classified as a forb – basically a soft-stemmed plant without woody tissue that completes its entire life cycle in a single growing season. Unlike its woody cousins, this little plant puts all its energy into growing, flowering, and setting seed before winter arrives.

The plant is native to California and represents just one subspecies of the broader Chamaesyce ocellata complex. You might occasionally see it referenced under its older scientific name, Euphorbia ocellata, in historical botanical literature.

Geographic Distribution

This sandmat calls California home, though its exact distribution within the state remains somewhat unclear due to limited recent documentation. The name Contura Creek suggests it may be associated with a specific watershed or geographic feature, but comprehensive range maps are surprisingly scarce.

The Reality Check: Why You Probably Can’t Grow This Plant

Here’s where things get interesting – and a bit disappointing if you were hoping to add this native to your garden. Contura Creek sandmat appears to be extremely rare, with very limited information available about its current status, growing requirements, or even whether viable populations still exist in the wild.

This lack of information typically indicates one of several scenarios:

  • The plant may have very limited natural populations
  • It could be restricted to highly specific habitat conditions
  • It might be so rare that it’s not commonly encountered by botanists or gardeners
  • In worst-case scenarios, it could be extinct or nearly extinct

What This Means for Your Garden

Unfortunately, you’re unlikely to find Contura Creek sandmat at your local native plant nursery. The extreme scarcity of information about this plant suggests it’s not available for cultivation, and attempting to collect it from wild populations (if they exist) would be both ecologically irresponsible and potentially illegal.

Better Alternatives: Other Native California Sandmats

Don’t despair! California is home to numerous other native Chamaesyce species and related ground-hugging plants that can fill similar ecological niches in your garden. Consider these more readily available alternatives:

  • Prostrate spurge (Chamaesyce maculata) – though check that it’s the native variety
  • Various native Euphorbia species
  • Other low-growing California native annuals that provide similar ground cover benefits

The Bigger Picture

The story of Contura Creek sandmat serves as a reminder of California’s incredible plant diversity – and how much we still don’t know about some of our native species. It also highlights the importance of protecting natural habitats, as specialized plants like this one may depend on very specific conditions that are easily disrupted.

If you’re passionate about native California plants, consider supporting botanical research, habitat conservation efforts, and organizations working to document and preserve the state’s flora. Sometimes the best way to grow a rare plant is to protect the wild spaces where it might still exist.

While you may not be able to cultivate Contura Creek sandmat in your garden, its existence reminds us that every corner of California’s landscape holds botanical treasures worth protecting – even the ones we’re still trying to understand.

Contura Creek Sandmat

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

Euphorbiales

Family

Euphorbiaceae Juss. - Spurge family

Genus

Chamaesyce Gray - sandmat

Species

Chamaesyce ocellata (Durand & Hilg.) Millsp. - Contura Creek sandmat

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