North America Native Plant

Oklahoma Thelypody

Botanical name: Thelypodium wrightii oklahomense

USDA symbol: THWRO

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Oklahoma Thelypody: A Rare Native Gem Worth Knowing About Meet the Oklahoma thelypody (Thelypodium wrightii oklahomense), one of those fascinating native plants that most gardeners have never heard of – and for good reason. This rare subspecies is like the botanical equivalent of a hidden treasure, quietly existing in just ...

Rare plant alert!

Region: Conservation status by state

Status: S4S5T2?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Oklahoma Thelypody: A Rare Native Gem Worth Knowing About

Meet the Oklahoma thelypody (Thelypodium wrightii oklahomense), one of those fascinating native plants that most gardeners have never heard of – and for good reason. This rare subspecies is like the botanical equivalent of a hidden treasure, quietly existing in just two states while most of us are none the wiser.

What Exactly Is Oklahoma Thelypody?

Oklahoma thelypody is a native forb – basically a fancy way of saying it’s a soft-stemmed, herbaceous plant without woody tissue. Think of it as the plant kingdom’s version of a gentle soul: it’s either biennial (living for two years) or perennial (coming back year after year), depending on growing conditions. Unlike shrubs or trees, this plant keeps its growing points at or below ground level, making it well-adapted to prairie conditions.

Where Does It Call Home?

This subspecies has a pretty exclusive address – you’ll only find it naturally occurring in Colorado and Oklahoma. That’s it. Two states. It’s like having a plant that only lives in your neighborhood and the next town over. This limited geographic distribution is part of what makes Oklahoma thelypody so special and, frankly, so vulnerable.

The Rarity Factor: Why This Matters

Here’s where things get serious. Oklahoma thelypody carries a Global Conservation Status of S4S5T2?, which basically means scientists are still figuring out exactly how rare it is, but they’re concerned enough to keep tracking it. In the plant world, that’s like having a proceed with caution sign attached to your name.

What does this mean for gardeners? If you’re incredibly lucky enough to encounter this plant or seeds, you’re looking at something genuinely special – but also something that needs our respect and protection.

Should You Grow Oklahoma Thelypody?

This is where we need to have an honest conversation. While Oklahoma thelypody is undoubtedly a fascinating native plant that deserves our admiration, it’s not your typical garden center find. Here’s what you need to know:

  • Rarity concerns: With its limited distribution and conservation status, this isn’t a plant to collect from the wild – ever.
  • Limited availability: You’re unlikely to find this at your local nursery, and that’s probably for the best given its status.
  • Responsible sourcing: If you do somehow find responsibly propagated material from a reputable native plant specialist, that’s different – but verify the source carefully.

Supporting Native Plant Conservation Instead

Rather than trying to grow this rare subspecies, consider these alternatives that support the same ecological goals:

  • Plant other native forbs from your region that provide similar ecological benefits
  • Support local native plant societies and botanical gardens
  • Participate in citizen science projects that help monitor rare plant populations
  • Create habitat that could potentially support rare natives if they naturally occur in your area

The Bigger Picture

Oklahoma thelypody represents something important in the native plant world – it’s a reminder that botanical diversity exists at incredibly fine scales. This subspecies has adapted to specific conditions in just two states, developing its own unique characteristics over thousands of years.

While most of us won’t be growing Oklahoma thelypody in our gardens anytime soon, knowing about plants like this helps us appreciate the incredible diversity of native species that exist right under our noses. It also reminds us why protecting natural habitats is so crucial – you can’t exactly recreate thousands of years of evolution in a greenhouse.

So the next time you’re planning your native plant garden, remember the Oklahoma thelypody. Let it inspire you to choose other native forbs that are more readily available and better suited to cultivation, while knowing you’re part of a larger community of people who care about preserving our botanical heritage – even the rare, quiet species that prefer to keep a low profile.

Oklahoma Thelypody

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

Thelypodium Endl. - thelypody

Species

Thelypodium wrightii A. Gray - Wright's thelypody

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