North America Native Plant

Fleshyfruit Gladecress

Botanical name: Leavenworthia crassa

USDA symbol: LECR

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Fleshyfruit Gladecress: A Rare Alabama Native Worth Protecting Meet the fleshyfruit gladecress (Leavenworthia crassa), one of Alabama’s most precious botanical treasures. This small but mighty annual herb might not win any flashy flower contests, but it holds a special place in the hearts of native plant enthusiasts and conservationists alike. ...

Rare plant alert!

Region: United States

Status: S2: Status is uncertain but is somewhere between the following rankings: 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) ⚘ 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) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Region: United States

Fleshyfruit Gladecress: A Rare Alabama Native Worth Protecting

Meet the fleshyfruit gladecress (Leavenworthia crassa), one of Alabama’s most precious botanical treasures. This small but mighty annual herb might not win any flashy flower contests, but it holds a special place in the hearts of native plant enthusiasts and conservationists alike. If you’re drawn to rare plants with fascinating stories, this little beauty deserves your attention – though it comes with some important considerations.

A Plant on the Edge

Let’s address the elephant in the room right away: fleshyfruit gladecress is incredibly rare. With a global conservation status of S2 (Imperiled) and listed as Endangered in the United States, this species teeters on the brink of extinction. Found only in Alabama’s unique limestone glades, it represents one of nature’s most specialized survivors. If you’re considering adding this plant to your garden, you’ll need to source it responsibly from reputable native plant nurseries that propagate from legally collected seeds – never collect from wild populations.

Where in the World

This Alabama endemic has one of the most restricted ranges you’ll find in North American flora. Fleshyfruit gladecress calls only the Heart of Dixie home, specifically thriving in the state’s distinctive limestone glade ecosystems. These specialized habitats – think of them as natural rock gardens carved by centuries of geological processes – provide the exact conditions this finicky plant demands.

Getting to Know Your Plant

As an annual forb, fleshyfruit gladecress completes its entire life cycle in just one growing season. Don’t let its humble classification fool you – this herbaceous plant packs impressive survival strategies into its compact form. Like other members of the mustard family, it produces small, four-petaled white flowers that may seem modest but serve as crucial pit stops for native pollinators, particularly small bees and beneficial insects.

The plant grows as a low rosette, keeping close to the ground in true glade fashion. While specific size information varies, most Leavenworthia species stay relatively small, making them perfect for intimate garden spaces and detailed observation.

Garden Role and Design Potential

If you’re lucky enough to acquire responsibly sourced fleshyfruit gladecress, you’ll want to showcase it in specialized settings. This isn’t your typical border plant – think of it more as a living museum piece that deserves prime real estate in:

  • Rock gardens with limestone substrates
  • Native plant collections focused on Alabama flora
  • Conservation gardens highlighting endangered species
  • Educational landscapes that tell stories of plant rarity

The Growing Challenge

Here’s where things get interesting (and potentially frustrating). Fleshyfruit gladecress isn’t just rare because of habitat loss – it’s genuinely picky about its living conditions. This plant evolved alongside Alabama’s limestone glades, developing very specific requirements:

  • Soil: Limestone-based, extremely well-draining substrates
  • Sun exposure: Full sun conditions
  • Moisture: Low water requirements once established
  • Climate: Cool season growth pattern (USDA zones 7-8)

As an annual, timing is everything. The plant typically germinates in fall or early spring, grows during cooler months, flowers, sets seed, and completes its cycle before Alabama’s intense summer heat arrives.

Should You Grow It?

This is where we need an honest conversation. Fleshyfruit gladecress presents a fascinating paradox for native plant gardeners. On one hand, growing rare plants in cultivation can serve important conservation purposes – creating backup populations and increasing awareness about endangered species. On the other hand, this plant’s extremely specific requirements make successful cultivation challenging even for experienced gardeners.

Consider growing fleshyfruit gladecress if you:

  • Have experience with finicky native plants
  • Can provide proper limestone-based growing conditions
  • Understand the conservation importance of your efforts
  • Can source plants or seeds responsibly

However, if you’re new to native gardening or lack the specialized conditions this plant requires, consider supporting its conservation in other ways while exploring more accessible Alabama natives for your garden.

A Conservation Success Story in Your Backyard

Every fleshyfruit gladecress plant successfully grown in cultivation represents a small victory against extinction. While this species may never become a garden center staple, its presence in thoughtful native plant gardens helps preserve genetic diversity and keeps this remarkable Alabama endemic alive for future generations.

If you decide to take on this challenge, you’re not just growing a plant – you’re becoming a conservation partner in one of North America’s most unique botanical stories.

Fleshyfruit 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 crassa Rollins - fleshyfruit gladecress

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