North America Non-native Plant

Crotalaria Rogersii

Botanical name: Crotalaria rogersii

USDA symbol: CRRO14

Native status: Not native but doesn't reproduce and persist in the wild

The Mystery Plant: Crotalaria rogersii If you’ve stumbled upon the name Crotalaria rogersii while researching native plants, you’re not alone in wondering what exactly this plant is all about. This particular species presents quite the puzzle for gardeners and botanists alike, as it’s one of those elusive plants that seems ...

The Mystery Plant: Crotalaria rogersii

If you’ve stumbled upon the name Crotalaria rogersii while researching native plants, you’re not alone in wondering what exactly this plant is all about. This particular species presents quite the puzzle for gardeners and botanists alike, as it’s one of those elusive plants that seems to fly under the radar of most horticultural resources.

What We Know (And Don’t Know)

Here’s the honest truth: Crotalaria rogersii is a bit of an enigma in the gardening world. While it belongs to the Crotalaria genus – a group of plants commonly known as rattlepods or showy crotalaria – specific information about C. rogersii is remarkably scarce in readily available horticultural literature.

The Crotalaria genus includes hundreds of species worldwide, many of which are known for their distinctive seed pods that rattle when dry (hence the rattlepod nickname). These plants are typically legumes, meaning they can fix nitrogen in the soil, which is always a plus for gardeners looking to improve their soil naturally.

The Information Gap

Unfortunately, details about C. rogersii’s native range, growing requirements, and garden suitability remain unclear from standard sources. This could mean several things:

  • It might be an extremely rare or localized species
  • It could be known by different names in various regions
  • It may be a recently described species with limited documentation
  • There might be some taxonomic confusion with the naming

A Cautious Approach

Given the lack of specific information about Crotalaria rogersii, we’d recommend proceeding with extra caution if you encounter this plant name. Without knowing its native status, invasive potential, or specific growing requirements, it’s difficult to provide solid gardening advice.

If you’re interested in plants from the Crotalaria genus, consider looking into better-documented species that are known to be beneficial in gardens. Many rattlepods are excellent for attracting pollinators and can serve as nitrogen-fixing cover crops.

What To Do If You Encounter This Plant

If you come across seeds, plants, or references to Crotalaria rogersii:

  • Verify the plant identification with local botanical experts
  • Check with your local extension office or native plant society
  • Research whether it might be listed under a different name
  • Consider well-documented native alternatives if you’re looking for similar plants

The Bottom Line

While we’d love to give you the complete scoop on growing Crotalaria rogersii, the mysterious nature of this particular species means we’re keeping this one filed under proceed with expert guidance. Sometimes the most honest thing a gardening blogger can say is we need more information – and this is definitely one of those times!

If you do manage to track down reliable information about this species, we’d love to hear from you. After all, every plant has a story, and some stories just take a little longer to unfold.

Crotalaria Rogersii

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Crotalaria L. - rattlebox

Species

Crotalaria rogersii Baker f.

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