North America Native Plant

Yellow Triteleia

Botanical name: Triteleia crocea var. modesta

USDA symbol: TRCRM

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Brodiaea crocea (Alph. Wood) S. Watson var. modesta (H.M. Hall) Munz (BRCRM)  âš˜  Triteleia modesta (H.M. Hall) Abrams (TRMO10)   

Yellow Triteleia: A Rare California Native Bulb Worth Knowing If you’re passionate about California native plants, you might have stumbled across the intriguing yellow triteleia (Triteleia crocea var. modesta). This lesser-known variety of the Triteleia family represents one of those special native gems that quietly contributes to California’s incredible botanical ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3: Status is uncertain but is somewhere between the following rankings: 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 ⚘

Yellow Triteleia: A Rare California Native Bulb Worth Knowing

If you’re passionate about California native plants, you might have stumbled across the intriguing yellow triteleia (Triteleia crocea var. modesta). This lesser-known variety of the Triteleia family represents one of those special native gems that quietly contributes to California’s incredible botanical diversity.

What Makes Yellow Triteleia Special?

Yellow triteleia is a perennial forb – essentially a non-woody flowering plant that comes back year after year. As part of the monocot family, it grows from underground bulbs and produces its flowers on slender stems. You might also encounter this plant listed under its synonyms Brodiaea crocea var. modesta or Triteleia modesta in older botanical references.

Where Does Yellow Triteleia Call Home?

This native beauty is exclusively found in California, making it a true Golden State original. Its limited geographic distribution contributes to its special status among California’s native flora.

A Word About Rarity

Here’s something important to know: yellow triteleia has a Global Conservation Status of S4T3, which indicates some level of conservation concern. This means if you’re considering adding this plant to your garden, it’s crucial to source it responsibly from reputable native plant nurseries that propagate their stock rather than collect from wild populations.

Should You Grow Yellow Triteleia?

The honest answer is that growing this particular variety can be challenging, primarily because:

  • Limited availability from nurseries due to its rarity
  • Minimal cultivation information specific to this variety
  • Conservation concerns that make responsible sourcing essential

If you’re drawn to the idea of growing native Triteleia species, you might consider starting with more common varieties like Triteleia laxa (grassnut) or Triteleia grandiflora, which are better established in cultivation and more readily available.

The Triteleia Growing Approach

While specific information about growing yellow triteleia is limited, Triteleia species generally share similar cultivation needs:

  • Well-draining soil is absolutely essential
  • Full sun to partial shade conditions
  • Dry summer dormancy period (typical of California natives)
  • Plant bulbs in fall for spring blooms

Supporting California’s Native Plant Heritage

Even if you don’t grow yellow triteleia directly, you can support California’s native plant diversity by:

  • Choosing other native Triteleia species for your garden
  • Supporting organizations that work on native plant conservation
  • Learning to identify native plants in your local area
  • Participating in citizen science projects that monitor rare plants

Yellow triteleia serves as a reminder that California’s native plant communities include many specialized and rare species that deserve our respect and protection. While it might not be the easiest addition to your garden, knowing about plants like this helps us appreciate the full spectrum of our native botanical heritage.

Yellow Triteleia

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Liliales

Family

Liliaceae Juss. - Lily family

Genus

Triteleia Douglas ex Lindl. - triteleia

Species

Triteleia crocea (Alph. Wood) Greene - yellow triteleia

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