North America Native Plant

Sierra Nevada Linanthus

Botanical name: Leptosiphon oblanceolatus

USDA symbol: LEOB14

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Linanthus oblanceolatus (Brand) Eastw. ex Jeps. (LIOB2)  âš˜  Linanthus tularensis (Brand) H. Mason (LITU5)  âš˜  Linanthus tularensis (Brand) H. Mason ssp. culbertsonii (LITUC)   

Sierra Nevada Linanthus: A Delicate California Native Worth Protecting If you’re drawn to California’s subtle wildflower beauties, you might find yourself enchanted by Sierra Nevada linanthus (Leptosiphon oblanceolatus). This delicate annual forb represents the quieter side of native gardening—not flashy or bold, but possessing an understated charm that speaks to ...

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 ⚘

Sierra Nevada Linanthus: A Delicate California Native Worth Protecting

If you’re drawn to California’s subtle wildflower beauties, you might find yourself enchanted by Sierra Nevada linanthus (Leptosiphon oblanceolatus). This delicate annual forb represents the quieter side of native gardening—not flashy or bold, but possessing an understated charm that speaks to those who appreciate nature’s more gentle expressions.

Meet This California Endemic

Sierra Nevada linanthus is a true California native, found exclusively within the Golden State’s borders. This petite annual forb grows as a non-woody plant, typically reaching just 6 to 12 inches in height. You might also encounter it under its former botanical names, including Linanthus oblanceolatus and Linanthus tularensis, though the current accepted name is Leptosiphon oblanceolatus.

Where You’ll Find It Growing Wild

This charming little plant calls California home, with natural populations scattered throughout the Sierra Nevada foothills and parts of the Central Valley. However, finding it isn’t as simple as taking a casual wildflower walk—Sierra Nevada linanthus has become increasingly rare in its native habitat.

A Word of Caution: Rarity Matters

Here’s where things get important for conscious gardeners: Sierra Nevada linanthus carries a Global Conservation Status of S3, meaning it’s considered vulnerable. With only an estimated 21 to 100 occurrences remaining and between 3,000 to 10,000 individual plants in the wild, this species faces real conservation challenges.

If you’re interested in growing this native beauty, please source seeds or plants only from reputable native plant nurseries that practice ethical collection methods. Never collect seeds from wild populations—these plants need every chance they can get to maintain their foothold in nature.

Garden Appeal and Design Role

Sierra Nevada linanthus brings subtle beauty to the garden with its small, tubular flowers that range from white to pale pink. As an annual, it completes its entire life cycle in one growing season, making it perfect for:

  • Native wildflower meadows and naturalized areas
  • Rock gardens where its delicate form won’t be overshadowed
  • Xeriscape gardens focused on water-wise California natives
  • Educational gardens highlighting rare California flora

Growing Conditions and Care

Like many California natives, Sierra Nevada linanthus thrives in conditions that might stress other garden plants. It prefers:

  • Well-draining soils (clay or overly rich soils can be problematic)
  • Full sun to partial shade exposure
  • Minimal water once established—this plant is naturally drought-tolerant
  • USDA hardiness zones 8-10, perfect for most California gardens

Planting and Maintenance Tips

Growing Sierra Nevada linanthus successfully means working with its natural annual cycle:

  • Direct seed in fall to mimic natural germination patterns
  • Scatter seeds lightly on prepared soil surface—these tiny seeds need light to germinate
  • Water gently until germination, then reduce watering significantly
  • Allow plants to self-seed for future generations
  • Minimal fertilization needed—rich soils can actually harm growth

Supporting Pollinators

Though small, the tubular flowers of Sierra Nevada linanthus provide nectar for tiny native bees and other beneficial insects. Every little bit helps when it comes to supporting California’s native pollinator populations, and this plant offers resources during its blooming period.

The Bottom Line

Should you grow Sierra Nevada linanthus? If you can source it responsibly and have appropriate growing conditions, absolutely. This rare native deserves a place in California gardens where it can be appreciated and potentially help supplement wild populations through ethical seed collection and sharing among conservation-minded gardeners.

However, if you can’t find responsibly sourced material, consider supporting this species in other ways—donate to native plant conservation organizations or volunteer for habitat restoration projects. Sometimes the best way to love a rare plant is to protect what’s left of its wild home.

Remember: gardening with rare natives isn’t just about what we can grow—it’s about what we can preserve for future generations to discover and cherish.

Sierra Nevada Linanthus

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

Leptosiphon Benth. - leptosiphon

Species

Leptosiphon oblanceolatus (Brand) J.M. Porter & L.A. Johnson - Sierra Nevada linanthus

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