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North America Native Plant

Navasota False Foxglove

Navasota False Foxglove: A Rare Texas Treasure Worth Protecting Meet the Navasota false foxglove (Agalinis navasotensis), one of Texas’s most endangered wildflowers and a plant that tells a story of both beauty and conservation urgency. This delicate annual is so rare that spotting one in the wild is like finding ...

Rare plant alert!

This plant is listed as rare and may be protected in certain regions. Its populations are limited, and removal from the wild could further endanger its survival. If you wish to enjoy this plant, consider sourcing from reputable nurseries that propagate responsibly or explore alternatives to help preserve natural populations.

Region: Conservation status by state

Status: S1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Navasota False Foxglove: A Rare Texas Treasure Worth Protecting

Meet the Navasota false foxglove (Agalinis navasotensis), one of Texas’s most endangered wildflowers and a plant that tells a story of both beauty and conservation urgency. This delicate annual is so rare that spotting one in the wild is like finding a botanical needle in a haystack.

What Makes This Plant Special

The Navasota false foxglove is a charming forb—basically a soft-stemmed wildflower without woody tissue—that produces small, tubular pink to purple flowers typical of the false foxglove family. As an annual plant, it completes its entire life cycle in just one growing season, making every blooming season precious for this critically endangered species.

Where You’ll Find It (If You’re Lucky)

This botanical rarity is found only in Texas, specifically in the Navasota area that gives the plant its common name. It’s what botanists call an endemic species—meaning it exists nowhere else on Earth. Talk about putting all your eggs in one basket!

A Critical Conservation Concern

Important Conservation Alert: Agalinis navasotensis has a Global Conservation Status of S1, meaning it’s critically imperiled. With typically 5 or fewer known occurrences and very few remaining individuals (fewer than 1,000), this plant is teetering on the edge of extinction.

What does this mean for gardeners? Simply put, this isn’t a plant for your backyard wildflower garden. Its extreme rarity makes it unsuitable for general cultivation, and attempting to grow it could potentially harm wild populations if seeds or plants are collected from nature.

Why This Plant Isn’t for Your Garden

While the Navasota false foxglove would undoubtedly be a conversation starter, here’s why you shouldn’t try to grow it:

  • Extremely limited availability—it’s essentially unavailable through normal channels
  • Highly specialized growing requirements that are difficult to replicate
  • Conservation ethics—every plant should remain in its natural habitat
  • Legal protections may apply to this rare species

Supporting Conservation Instead

Rather than trying to grow this rare treasure, consider supporting conservation efforts for Texas’s endangered plants. You can help by:

  • Supporting organizations that protect Texas wildlands
  • Learning to identify rare plants in case you encounter them
  • Never collecting rare plants from the wild
  • Reporting sightings to botanical databases

Alternative Native Texas Plants

If you’re drawn to the charm of false foxgloves, consider these more common native Texas alternatives that you can actually grow:

  • Purple false foxglove (Agalinis purpurea)—more widely distributed
  • Threadleaf false foxglove (Agalinis heterophylla)—another Texas native
  • Other native Texas wildflowers like bluebonnets, Indian paintbrush, or black-eyed Susan

The Bigger Picture

The story of Navasota false foxglove reminds us that not every beautiful native plant belongs in our gardens. Sometimes the best way to appreciate a species is to protect it in its natural habitat and choose more common alternatives for our landscapes. By understanding and respecting the rarity of plants like Agalinis navasotensis, we become better stewards of our botanical heritage.

Every rare plant species represents millions of years of evolution and adaptation. While we can’t all grow the Navasota false foxglove, we can all play a role in ensuring it continues to bloom in its Texas home for generations to come.

Navasota False Foxglove

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Agalinis Raf. - false foxglove

Species

Agalinis navasotensis M. Dubrule & J. Canne-Hilliker - Navasota false foxglove

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