North America Non-native Plant

Nesogenes Rotensis

Botanical name: Nesogenes rotensis

USDA symbol: NERO

Life cycle: perennial

Habit: forb

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

Nesogenes rotensis: A Critically Endangered Native Treasure Meet Nesogenes rotensis, a plant so rare that most gardeners will never encounter it in their lifetime. This perennial forb represents one of nature’s most precious and precarious botanical treasures, carrying a conservation status that should make any plant lover sit up and ...

Rare plant alert!

Region: United States

Status: S1?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Nesogenes rotensis: A Critically Endangered Native Treasure

Meet Nesogenes rotensis, a plant so rare that most gardeners will never encounter it in their lifetime. This perennial forb represents one of nature’s most precious and precarious botanical treasures, carrying a conservation status that should make any plant lover sit up and take notice.

What Makes This Plant So Special (And So Rare)?

Nesogenes rotensis belongs to that exclusive club of plants that conservation biologists lose sleep over. With a Global Conservation Status of S1?, this species is classified as Critically Imperiled – meaning it teeters on the edge of extinction with typically fewer than five known occurrences or fewer than 1,000 remaining individuals in the wild. In the United States, it carries the sobering designation of Endangered.

The Mystery of the Unknown

Here’s where things get interesting (and a bit frustrating for curious gardeners): this plant is so rare that many basic details about it remain shrouded in mystery. We don’t even have a widely recognized common name for it – it’s known primarily by its scientific name, Nesogenes rotensis. Its geographical distribution, growing preferences, and even its appearance are not well-documented in standard horticultural references.

What We Do Know

Despite the mysteries surrounding this species, we can share a few key facts:

  • It’s a perennial forb – essentially an herbaceous flowering plant without woody stems
  • Like other forbs, it lacks significant woody tissue above ground
  • It has perennating buds at or below the ground surface, helping it survive from year to year
  • Its conservation status indicates it’s hanging on by a thread in the wild

Should You Try to Grow Nesogenes rotensis?

Here’s where we need to pump the brakes. While the plant lover in all of us might be intrigued by such a rare species, the reality is that Nesogenes rotensis should only be cultivated under very specific circumstances:

  • Only with material that has been responsibly and legally sourced
  • Preferably as part of conservation efforts rather than casual gardening
  • With proper permits and documentation if required
  • Under the guidance of conservation professionals

The Conservation Connection

Rather than focusing on how to grow this endangered species, let’s talk about what its existence means for our gardens and native plant communities. Every critically endangered plant like Nesogenes rotensis represents a unique evolutionary story – genetic material and ecological relationships that took millions of years to develop and could be lost forever.

As native plant gardeners, we can support conservation efforts by:

  • Growing other native species that support local ecosystems
  • Supporting botanical gardens and conservation organizations
  • Choosing responsibly sourced native plants for our gardens
  • Learning about and protecting rare plants in our local areas

The Bigger Picture

While you probably won’t be adding Nesogenes rotensis to your shopping list anytime soon, its story serves as a powerful reminder of why native plant gardening matters. Every time we choose native species over non-native alternatives, we’re supporting the broader web of life that includes rare treasures like this one.

Instead of seeking out this critically endangered species, consider exploring the many other native forbs and wildflowers that can bring beauty and ecological value to your garden while supporting conservation through sustainable gardening practices.

Nesogenes Rotensis

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

Lamiales

Family

Verbenaceae J. St.-Hil. - Verbena family

Genus

Nesogenes A. DC.

Species

Nesogenes rotensis Fosberg & D.R. Herbst

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