North America Native Plant

Chlorocrambe

Botanical name: Chlorocrambe

USDA symbol: CHLOR2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Chlorocrambe: The Mystery Native Forb You’ve Probably Never Heard Of If you’ve never heard of chlorocrambe, don’t worry—you’re definitely not alone! This native perennial forb is one of those botanical mysteries that even experienced gardeners might scratch their heads over. Let’s dive into what we know about this elusive plant ...

Chlorocrambe: The Mystery Native Forb You’ve Probably Never Heard Of

If you’ve never heard of chlorocrambe, don’t worry—you’re definitely not alone! This native perennial forb is one of those botanical mysteries that even experienced gardeners might scratch their heads over. Let’s dive into what we know about this elusive plant and whether it might have a place in your native garden.

What Exactly Is Chlorocrambe?

Chlorocrambe is a native perennial forb, which means it’s an herbaceous plant without woody stems that comes back year after year. As a forb, it lacks the significant woody tissue you’d find in shrubs or trees, instead putting its energy into soft, green growth that dies back to the ground each winter and reemerges in spring.

The plant belongs to the dicot group, meaning its seeds have two cotyledons (seed leaves), and it develops the typical broad-leafed structure we associate with many flowering plants.

Where Does Chlorocrambe Call Home?

This native plant species has a surprisingly limited range for something indigenous to the lower 48 states. Chlorocrambe naturally occurs in just two states: Oregon and Utah. This restricted distribution makes it quite the botanical treasure for those lucky enough to encounter it in the wild.

The Challenge of Growing Chlorocrambe

Here’s where things get tricky for eager native plant gardeners. Despite being a legitimate native species, information about successfully cultivating chlorocrambe is extremely limited. This could mean several things:

  • It may have very specific growing requirements that make cultivation challenging
  • It might be naturally rare, making it difficult to study or obtain
  • The plant could have limited horticultural value, meaning few people have attempted to grow it

Should You Try to Grow It?

The honest answer is: probably not, at least not without doing some serious detective work first. Without knowing its preferred growing conditions, hardiness zones, or propagation methods, attempting to grow chlorocrambe would be more like conducting a botanical experiment than following a reliable gardening plan.

If you’re dead set on tracking down this mysterious native, your best bet would be to:

  • Contact native plant societies in Oregon and Utah
  • Reach out to botanical gardens or universities in those states
  • Connect with local naturalists who might have encountered it in the wild
  • Ensure any plant material is ethically and legally sourced

Better Native Alternatives

While chlorocrambe remains an enigma, there are plenty of other native forbs that can bring beauty and ecological value to your garden. Consider these well-documented alternatives that share similar characteristics as herbaceous perennials:

  • Wild bergamot (Monarda fistulosa) – excellent for pollinators
  • Purple coneflower (Echinacea purpurea) – stunning flowers and bird-friendly seeds
  • Black-eyed Susan (Rudbeckia hirta) – cheerful blooms and easy to grow
  • Wild columbine (Aquilegia canadensis) – delicate flowers for woodland gardens

The Bottom Line

Chlorocrambe serves as a fascinating reminder that even in our well-documented world, botanical mysteries still exist. While we can’t recommend it for your garden due to lack of growing information, its very existence highlights the incredible diversity of native plants across our continent.

Sometimes the best way to appreciate a mysterious native like chlorocrambe is to support habitat conservation in Oregon and Utah, where it naturally occurs. Who knows? Maybe future botanical research will unlock the secrets of successfully growing this enigmatic forb, bringing it from the realm of mystery into the garden.

Chlorocrambe

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

Chlorocrambe Rydb. - chlorocrambe

Species

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