North America Native Plant

Alabama Gladecress

Botanical name: Leavenworthia alabamica var. brachystyla

USDA symbol: LEALB

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Alabama Gladecress: A Rare Native Gem Worth Protecting Meet Alabama gladecress (Leavenworthia alabamica var. brachystyla), one of the South’s best-kept botanical secrets! This charming little annual wildflower might not win any size contests, but what it lacks in stature, it makes up for in rarity and ecological importance. If you’re ...

Rare plant alert!

Region: Conservation status by state

Status: S2T1T2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Subspecies or variety is 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) ⚘ 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) ⚘ 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) ⚘

Alabama Gladecress: A Rare Native Gem Worth Protecting

Meet Alabama gladecress (Leavenworthia alabamica var. brachystyla), one of the South’s best-kept botanical secrets! This charming little annual wildflower might not win any size contests, but what it lacks in stature, it makes up for in rarity and ecological importance. If you’re passionate about native plants and conservation, this delicate beauty deserves a spot on your radar.

What Makes Alabama Gladecress Special?

Alabama gladecress is a native annual forb that belongs to the mustard family. As a forb, it’s an herbaceous plant without woody stems—think of it as nature’s version of a delicate annual flower that completes its entire life cycle in just one growing season. This little plant produces a low-growing rosette of leaves and sends up small clusters of white to pale purple flowers that bloom in early spring, providing crucial nectar for early-season pollinators when few other flowers are available.

Where Does It Call Home?

Here’s where things get really interesting (and a bit concerning): Alabama gladecress is found exclusively in Alabama, making it what botanists call an endemic species. This means you won’t find it growing wild anywhere else in the world! The plant has adapted to very specific conditions found in limestone glades and rocky outcrops throughout its home state.

A Rare Beauty That Needs Our Help

Before you get too excited about adding this native gem to your garden, there’s something important you need to know: Alabama gladecress has a conservation status of S2T1T2Q, which indicates it’s considered rare and potentially at risk. This rarity status means we need to be extra thoughtful about how we approach growing this species.

If you’re interested in growing Alabama gladecress, please only use responsibly sourced seeds or plants. This means purchasing from reputable native plant nurseries that propagate their own stock rather than collecting from wild populations. Never harvest seeds or plants from natural areas—these populations are too precious to disturb!

Growing Alabama Gladecress Successfully

Want to try your hand at growing this rare native? Here’s what you need to know:

Ideal Growing Conditions

  • Soil: Well-draining, limestone-derived soils (alkaline pH preferred)
  • Light: Partial shade to full sun
  • Climate: USDA hardiness zones 7-8
  • Moisture: Moderate drainage—not too wet, not bone dry

Perfect Garden Settings

Alabama gladecress shines in:

  • Rock gardens with limestone elements
  • Native plant collections and conservation gardens
  • Naturalized areas that mimic glade conditions
  • Specialty wildflower meadows

Planting and Care Tips

  • Direct seed in fall for spring germination (this annual needs winter chill)
  • Scatter seeds on prepared soil surface—don’t bury them deeply
  • Keep soil consistently moist during germination period
  • Once established, it requires minimal care and maintenance
  • Allow plants to self-seed for natural population renewal

Why Your Garden (and Local Pollinators) Will Love It

Despite its small size, Alabama gladecress punches above its weight when it comes to ecological benefits. Those early spring blooms provide vital nectar sources for small bees, flies, and other pollinators emerging from winter dormancy. Since it blooms when few other flowers are available, it fills a crucial gap in the pollinator calendar.

From a design perspective, this petite plant works beautifully as a delicate groundcover in rock gardens or as part of a diverse native plant collection. Its subtle charm and conservation story make it a great conversation starter for garden tours!

The Bottom Line

Alabama gladecress represents everything we love about native plants: ecological importance, unique beauty, and a deep connection to place. However, its rarity means we must approach it with respect and responsibility. If you decide to grow this special species, commit to sourcing it ethically and perhaps consider it part of your personal contribution to plant conservation.

Remember, every garden that provides habitat for native species—no matter how small or rare—contributes to the larger web of biodiversity that makes our natural world so resilient and beautiful. Alabama gladecress might be tiny, but its impact on conservation-minded gardeners can be huge!

Alabama Gladecress

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

Leavenworthia Torr. - gladecress

Species

Leavenworthia alabamica Rollins - Alabama gladecress

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