North America Native Plant

Greater Yellowthroat Gilia

Botanical name: Gilia tenuiflora amplifaucalis

USDA symbol: GITEA

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Greater Yellowthroat Gilia: A Rare California Native Worth Knowing If you’re passionate about native plants and conservation, you’ve probably never heard of greater yellowthroat gilia (Gilia tenuiflora amplifaucalis). And honestly? That’s not surprising. This little-known California native is one of those botanical gems that flies completely under the radar – ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4T3: Status is uncertain but is somewhere between the following rankings: 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 ⚘ 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. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Greater Yellowthroat Gilia: A Rare California Native Worth Knowing

If you’re passionate about native plants and conservation, you’ve probably never heard of greater yellowthroat gilia (Gilia tenuiflora amplifaucalis). And honestly? That’s not surprising. This little-known California native is one of those botanical gems that flies completely under the radar – partly because it’s quite rare and partly because it’s, well, just not widely available in the gardening world.

What Makes This Plant Special?

Greater yellowthroat gilia is an annual forb, which is just a fancy way of saying it’s a soft-stemmed herbaceous plant that completes its entire life cycle in one growing season. Unlike perennials that come back year after year, this little guy grows, flowers, sets seed, and calls it a day – all within a single year.

As a native member of California’s diverse plant community, this gilia has been quietly doing its thing in the Golden State’s ecosystems for who knows how long. It’s part of that incredible tapestry of native plants that makes California’s flora so unique and special.

Where Does It Grow?

This subspecies is found exclusively in California, making it a true Golden State endemic. Its limited range is part of what makes it so special – and so vulnerable.

The Conservation Reality Check

Here’s where things get serious, folks. Greater yellowthroat gilia has a conservation status of S3S4T3, which might sound like gibberish, but it’s actually conservation-speak for this subspecies is vulnerable and we need to pay attention. The T3 specifically indicates that this taxonomic subspecies is at risk of disappearing from its native range.

What does this mean for gardeners? If you’re lucky enough to find seeds or plants of this species, make absolutely sure they’re from reputable, conservation-minded sources. Wild collection of rare plants is a big no-no and can push vulnerable species closer to extinction.

Should You Try Growing It?

This is where things get tricky. While I’d love to give you a comprehensive growing guide, the reality is that information about successfully cultivating this particular subspecies is pretty limited. That’s often the case with rare native plants – they’re not exactly showing up at your local garden center!

If you’re determined to grow rare California natives, here are some general guidelines for annual gilias:

  • Most gilias prefer well-draining soil
  • They typically thrive in sunny locations
  • As California natives, they’re usually adapted to the state’s Mediterranean climate
  • Being annuals, they’ll need to reseed each year

Better Alternatives for Your Garden

Given the rarity of greater yellowthroat gilia, you might want to consider other members of the Gilia family that are more readily available and better documented. Look for:

  • Bird’s eyes gilia (Gilia tricolor)
  • Blue field gilia (Gilia capitata)
  • Scarlet gilia (Ipomopsis aggregata)

These relatives can give you that native gilia experience while being much easier to source responsibly and grow successfully.

The Bigger Picture

Sometimes the most important plants aren’t the showstoppers or the easy-care favorites. Sometimes they’re the quiet, vulnerable species like greater yellowthroat gilia that remind us why native plant conservation matters. Even if you never grow this particular plant, knowing it exists and understanding its conservation status helps us all become better stewards of our native flora.

If you’re interested in supporting rare California natives, consider getting involved with local native plant societies, botanical gardens, or conservation organizations. They often have seed collection and propagation programs that help maintain genetic diversity of rare species while providing responsibly sourced plants for restoration and education.

Sometimes being a native plant gardener means appreciating the plants we can’t easily grow just as much as the ones we can.

Greater Yellowthroat Gilia

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Solanales

Family

Polemoniaceae Juss. - Phlox family

Genus

Gilia Ruiz & Pav. - gilia

Species

Gilia tenuiflora Benth. - greater yellowthroat gilia

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