North America Native Plant

Goldencarpet

Botanical name: Gilmania luteola

USDA symbol: GILU

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Goldencarpet: A Rare California Native That Deserves Our Protection Meet goldencarpet (Gilmania luteola), one of California’s most elusive native wildflowers. This little-known annual herb might not be showing up at your local nursery anytime soon, and there’s a very good reason why – it’s incredibly rare and needs our protection ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Goldencarpet: A Rare California Native That Deserves Our Protection

Meet goldencarpet (Gilmania luteola), one of California’s most elusive native wildflowers. This little-known annual herb might not be showing up at your local nursery anytime soon, and there’s a very good reason why – it’s incredibly rare and needs our protection more than our garden beds.

What Makes Goldencarpet Special?

Goldencarpet is a native annual forb, which simply means it’s a soft-stemmed flowering plant that completes its entire life cycle in one growing season. Unlike woody shrubs or trees, this delicate wildflower lacks any significant woody tissue and grows fresh from seed each year. As a true California native, it belongs exclusively to the Golden State’s unique botanical heritage.

Where Does Goldencarpet Grow?

This rare gem calls California home, though pinpointing exactly where you might stumble upon it is part of its mystery. Goldencarpet has an extremely limited distribution within the state, making it one of those special plants that few people will ever encounter in the wild.

A Plant in Need of Protection

Here’s where things get serious: goldencarpet has a Global Conservation Status of S2, which means it’s imperiled. In plain English, this plant is in trouble. Scientists estimate there are only 6 to 20 known populations left, with perhaps just 1,000 to 3,000 individual plants remaining in the entire world. That’s incredibly rare – we’re talking about a plant that’s teetering on the edge of extinction.

Should You Grow Goldencarpet in Your Garden?

While supporting native plants is always admirable, goldencarpet presents a unique situation. Given its extremely rare status, this isn’t a plant you should be seeking out for your home landscape. Here’s why:

  • Collecting seeds or plants from wild populations could further threaten the species
  • The plant’s specific growing requirements are not well-documented, making successful cultivation challenging
  • Its rarity means it’s not commercially available through reputable native plant sources

How You Can Help Instead

Rather than trying to grow goldencarpet, consider these alternatives that support California’s native plant heritage:

  • Choose other California native annuals that are more common and readily available
  • Support organizations working to conserve rare plants like the California Native Plant Society
  • If you ever encounter goldencarpet in the wild, report the location to local botanists or conservation groups
  • Focus on creating habitat for California’s native wildlife using more common native species

The Bigger Picture

Goldencarpet serves as a reminder that not every native plant is suitable for home gardens – sometimes the most important thing we can do is leave rare species undisturbed in their natural habitats. By respecting the boundaries of what should and shouldn’t be cultivated, we become better stewards of our native plant heritage.

If you’re passionate about growing California natives, there are hundreds of other species that can provide beauty, wildlife habitat, and ecological benefits without putting rare plants at risk. Save goldencarpet’s spot in nature, and fill your garden with its more common cousins instead.

Goldencarpet

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

Gilmania Coville - goldencarpet

Species

Gilmania luteola (Coville) Coville - goldencarpet

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