North America Native Plant

Rush Biscuitroot

Botanical name: Lomatium junceum

USDA symbol: LOJU3

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Aletes juncea (Barneby & N.H. Holmgren) W.A. Weber (ALJU2)   

Rush Biscuitroot: A Rare Utah Native Worth Protecting If you’re passionate about native gardening and conservation, you might be intrigued by rush biscuitroot (Lomatium junceum), a fascinating perennial that calls Utah home. But before you start planning where to plant it, there’s something important you need to know about this ...

Rare plant alert!

Region: Conservation status by state

Status: S3: 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 ⚘

Rush Biscuitroot: A Rare Utah Native Worth Protecting

If you’re passionate about native gardening and conservation, you might be intrigued by rush biscuitroot (Lomatium junceum), a fascinating perennial that calls Utah home. But before you start planning where to plant it, there’s something important you need to know about this special little wildflower.

A Plant with a Story

Rush biscuitroot isn’t your typical garden center find, and there’s a good reason for that. This native Utah perennial holds a Global Conservation Status of S3, meaning it’s considered vulnerable throughout its range. With typically only 21 to 100 occurrences and between 3,000 to 10,000 individuals in the wild, this plant is genuinely rare and deserves our respect and protection.

Where Rush Biscuitroot Calls Home

This specialized native is found exclusively in Utah, making it a true regional treasure. As a plant that’s adapted to very specific conditions over thousands of years, rush biscuitroot represents an important piece of Utah’s natural heritage.

What Does Rush Biscuitroot Look Like?

True to its name, rush biscuitroot has a distinctive appearance that sets it apart from other garden plants. As a forb (a non-woody perennial), it produces slender, rush-like foliage that gives it an almost grass-like appearance from a distance. Come flowering time, it produces the characteristic yellow umbel flowers typical of plants in the carrot family, creating delicate clusters that attract various pollinators.

The Conservation Question: Should You Grow It?

Here’s where things get interesting – and where your conservation ethics come into play. While rush biscuitroot could potentially thrive in the right garden setting, its rare status means we need to be extremely thoughtful about cultivation.

If you’re considering growing rush biscuitroot, please ensure any plant material is responsibly sourced. This means:

  • Never collecting plants or seeds from wild populations
  • Only purchasing from reputable native plant nurseries that propagate their own stock
  • Verifying that any plant material comes from ethical propagation programs
  • Consider supporting conservation efforts instead of home cultivation

Growing Conditions and Care

If you do find responsibly sourced rush biscuitroot, understanding its preferred growing conditions is essential for success. As a Utah native adapted to arid conditions, this plant thrives in:

  • Full sun exposure
  • Extremely well-draining soils
  • Low to minimal supplemental watering once established
  • Rocky or sandy soil conditions

Rush biscuitroot is likely hardy in USDA zones 4-7, making it suitable for much of the mountain west region. However, it can be challenging to establish and maintain in typical garden settings, as it’s adapted to very specific natural conditions.

Pollinator and Wildlife Value

Like other Lomatium species, rush biscuitroot provides valuable nectar and pollen resources for native pollinators, including small native bees and flies. These relationships developed over thousands of years, making the plant an important component of Utah’s native ecosystem.

Garden Design Considerations

If you’re lucky enough to acquire responsibly sourced rush biscuitroot, it would work best in:

  • Specialized native plant gardens
  • Rock gardens with excellent drainage
  • Xeriscape designs focusing on regional natives
  • Conservation-focused landscape projects

The Bottom Line

Rush biscuitroot represents something special – a rare native plant that connects us to Utah’s unique natural heritage. While it’s technically possible to grow in the right conditions, the most important thing we can do for this vulnerable species is protect its wild populations and support conservation efforts.

If native gardening is your passion, consider exploring more common Utah natives that can provide similar ecological benefits without the conservation concerns. Your local native plant society or extension office can suggest abundant alternatives that will give you that authentic regional garden experience while leaving rare species like rush biscuitroot to thrive in their natural habitats.

Sometimes the best way to appreciate a rare plant is to admire it in the wild and support the conservation efforts working to protect it for future generations.

Rush Biscuitroot

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

Lomatium Raf. - desertparsley

Species

Lomatium junceum Barneby & N.H. Holmgren - rush biscuitroot

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