North America Native Plant

Gypsum Blazingstar

Botanical name: Mentzelia humilis var. guadalupensis

USDA symbol: MEHUG

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Gypsum Blazingstar: A Rare Native Gem That Needs Our Protection Meet the gypsum blazingstar (Mentzelia humilis var. guadalupensis), a little-known native wildflower that’s as rare as it is intriguing. This delicate annual or perennial forb represents one of nature’s more specialized creations, adapted to very specific conditions in the American ...

Rare plant alert!

Region: Conservation status by state

Status: S4T2: Status is uncertain but is somewhere between the following rankings: 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) ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Gypsum Blazingstar: A Rare Native Gem That Needs Our Protection

Meet the gypsum blazingstar (Mentzelia humilis var. guadalupensis), a little-known native wildflower that’s as rare as it is intriguing. This delicate annual or perennial forb represents one of nature’s more specialized creations, adapted to very specific conditions in the American Southwest.

What Makes Gypsum Blazingstar Special?

As its common name suggests, this blazingstar has a particular affinity for gypsum-rich soils, making it a true habitat specialist. Unlike its showier cousins in the Mentzelia family, this variety has remained relatively unknown to most gardeners—and for good reason. It’s what botanists call an endemic, meaning it exists in only a very limited geographic area.

Where Does It Call Home?

The gypsum blazingstar is a proud New Mexican native, found naturally only within the state’s borders. This incredibly restricted range makes it a true regional treasure, adapted to the unique soil chemistry and climate conditions of its desert homeland.

A Plant That Deserves Respect

Here’s where things get serious: this plant carries a Global Conservation Status of S4T2, indicating it’s quite rare in the wild. While the exact implications of this status aren’t fully defined in current databases, any plant with such restricted distribution deserves our careful consideration.

As a responsible gardener, this means thinking twice before adding gypsum blazingstar to your landscape. If you’re determined to grow this rare beauty, you absolutely must ensure your plant material comes from ethical, sustainable sources—never from wild collection.

Garden Potential and Considerations

The gypsum blazingstar grows as a forb—essentially a non-woody flowering plant that may be annual or perennial. Like other members of the blazingstar family, it likely produces cheerful, star-shaped flowers, though specific details about this variety’s appearance are scarce in horticultural literature.

Given its specialized soil requirements and rarity, this isn’t a plant for the casual weekend gardener. It would be best suited for:

  • Specialized native plant gardens
  • Conservation-focused botanical collections
  • Educational landscapes highlighting rare regional flora
  • Rock gardens with appropriate soil amendments

Growing Conditions: Specialty Requirements

While specific cultivation information for this variety is limited, its name gives us important clues. Gypsum blazingstar suggests this plant requires:

  • Gypsum-rich or alkaline soils
  • Excellent drainage (typical of desert plants)
  • Low to moderate water requirements
  • Full sun exposure
  • Minimal soil organic matter

The Bottom Line for Gardeners

Should you plant gypsum blazingstar? The honest answer is: probably not, unless you’re a serious native plant conservationist with access to ethically sourced seeds or plants. This rare variety is better appreciated in its natural habitat or in specialized botanical collections.

If you’re drawn to blazingstars for your New Mexico garden, consider more common native Mentzelia species that can provide similar aesthetic appeal without the conservation concerns. Your local native plant society can point you toward beautiful, locally appropriate alternatives that won’t put pressure on rare wild populations.

Supporting Conservation

The best way to grow gypsum blazingstar might be to support habitat conservation efforts in New Mexico. Sometimes the most loving thing we can do for a rare plant is simply let it be wild and work to protect the places where it naturally thrives.

Remember: great gardeners aren’t just plant growers—we’re also plant protectors. And sometimes that means admiring from a distance and choosing more abundant alternatives for our home landscapes.

Gypsum Blazingstar

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

Violales

Family

Loasaceae Juss. - Loasa family

Genus

Mentzelia L. - blazingstar

Species

Mentzelia humilis (A. Gray) J. Darl. - gypsum blazingstar

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