North America Native Plant

Threadleaf Bladderpod

Botanical name: Lesquerella angustifolia

USDA symbol: LEAN2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Threadleaf Bladderpod: A Delicate Native Wildflower Worth Protecting If you’re looking to add some early spring charm to your native garden, threadleaf bladderpod (Lesquerella angustifolia) might just be the delicate beauty you’ve been searching for. This petite annual wildflower brings a touch of sunshine to the landscape with its cheerful ...

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 ⚘

Threadleaf Bladderpod: A Delicate Native Wildflower Worth Protecting

If you’re looking to add some early spring charm to your native garden, threadleaf bladderpod (Lesquerella angustifolia) might just be the delicate beauty you’ve been searching for. This petite annual wildflower brings a touch of sunshine to the landscape with its cheerful yellow blooms, but there’s more to this plant than meets the eye.

What Is Threadleaf Bladderpod?

Threadleaf bladderpod is a native forb that calls the south-central United States home. As an annual plant, it completes its entire life cycle in one growing season, making the most of spring’s mild weather before the summer heat arrives. Don’t let its delicate appearance fool you – this little wildflower is perfectly adapted to its native range and plays an important role in local ecosystems.

Where Does It Grow Naturally?

This charming native is found naturally in Oklahoma and Texas, where it has adapted to the region’s unique climate and soil conditions. As a true native of the lower 48 states, threadleaf bladderpod has been quietly decorating the American landscape long before European settlement.

A Plant That Needs Our Help

Here’s where things get important: threadleaf bladderpod has a Global Conservation Status of S3, meaning it’s considered vulnerable. With typically only 21 to 100 occurrences or between 3,000 and 10,000 individuals remaining, this species is at risk of disappearing from our landscapes forever. This makes it extra special for native plant enthusiasts who want to make a real difference.

Why Grow Threadleaf Bladderpod?

Despite its rarity – or perhaps because of it – there are compelling reasons to consider adding this native to your garden:

  • Early spring blooms provide nectar for native bees and beneficial insects when few other flowers are available
  • Adds authentic regional character to wildflower gardens and naturalistic landscapes
  • Requires minimal care once established, making it perfect for low-maintenance native gardens
  • Helps support conservation efforts for a vulnerable species
  • Drought tolerant, making it ideal for water-wise gardening

Perfect Garden Settings

Threadleaf bladderpod shines brightest in native wildflower gardens and naturalistic landscapes. It’s particularly well-suited for gardeners in USDA hardiness zones 7-9 who want to create authentic regional plant communities. Consider it for:

  • Wildflower meadows and prairies
  • Native plant demonstration gardens
  • Low-water or drought-tolerant landscapes
  • Areas where you want early spring color

Growing Conditions and Care

Like many native plants, threadleaf bladderpod isn’t particularly fussy once you understand its preferences:

  • Sun: Thrives in full sun conditions
  • Soil: Prefers well-drained soils – avoid areas that stay soggy
  • Water: Drought tolerant once established, but appreciates some moisture during germination and early growth
  • Maintenance: Minimal care required – this plant knows how to take care of itself

Planting and Propagation Tips

The best way to establish threadleaf bladderpod is through direct seeding in fall, which allows for natural cold stratification over winter. Here’s how to give your seeds the best start:

  • Scatter seeds in fall on prepared soil surface
  • Lightly rake to ensure good soil contact
  • Allow natural winter conditions to break seed dormancy
  • Watch for spring germination as temperatures warm
  • Allow plants to self-seed for natural population expansion

A Critical Conservation Note

If you decide to grow threadleaf bladderpod, please ensure you source seeds or plants responsibly. Given its vulnerable conservation status, it’s crucial to purchase from reputable native plant suppliers who ethically collect seeds or propagate plants without harming wild populations. Never collect seeds or plants from the wild – let’s help this species recover, not decline further.

The Bottom Line

Threadleaf bladderpod offers native plant gardeners a unique opportunity to grow something truly special while contributing to conservation efforts. Its delicate yellow flowers, easy care requirements, and important ecological role make it a worthwhile addition to the right garden. Just remember to source it responsibly and give it the well-drained, sunny conditions it craves. With a little care and the right growing conditions, you’ll be rewarded with a beautiful native wildflower that supports local wildlife and helps preserve an important piece of America’s natural heritage.

Threadleaf Bladderpod

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Brassicaceae Burnett - Mustard family

Genus

Lesquerella S. Watson - bladderpod

Species

Lesquerella angustifolia (Nutt. ex Torr. & A. Gray) S. Watson - threadleaf bladderpod

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