North America Native Plant

Mono Craters Blazingstar

Botanical name: Mentzelia monoensis

USDA symbol: MEMO12

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Mono Craters Blazingstar: A Rare California Native Worth Protecting Meet the Mono Craters blazingstar (Mentzelia monoensis), a charming little wildflower that’s as unique as its volcanic homeland. This annual native is one of California’s hidden gems – literally hidden, since it grows in just one special spot in the eastern ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Mono Craters Blazingstar: A Rare California Native Worth Protecting

Meet the Mono Craters blazingstar (Mentzelia monoensis), a charming little wildflower that’s as unique as its volcanic homeland. This annual native is one of California’s hidden gems – literally hidden, since it grows in just one special spot in the eastern Sierra Nevada. If you’re passionate about native plants and conservation, this rare beauty might just capture your heart.

Where Does Mono Craters Blazingstar Call Home?

This special plant is what we call an endemic species, meaning it’s found naturally in only one place on Earth. Mono Craters blazingstar grows exclusively in California, specifically in the Mono Craters area of the eastern Sierra Nevada. Talk about a plant with a very specific address!

What Makes This Plant Special?

Mono Craters blazingstar is an annual forb – essentially a non-woody flowering plant that completes its entire life cycle in one growing season. Despite being small in stature, it packs a punch with its bright yellow flowers that bloom during the summer months, creating cheerful splashes of color against the stark volcanic landscape of its native habitat.

As a member of the blazingstar family, this plant produces nectar-rich flowers that serve as valuable food sources for native bees and other pollinators. It’s perfectly adapted to life in sandy, volcanic soils with minimal water – a true desert survivor.

The Conservation Reality Check

Here’s where things get serious: Mono Craters blazingstar has a Global Conservation Status of S3, which means it’s considered vulnerable. With typically only 21 to 100 occurrences and between 3,000 to 10,000 individuals in the wild, this isn’t your everyday garden plant. This rarity status means we need to be extra thoughtful about how we approach growing it.

Should You Grow Mono Craters Blazingstar?

The short answer is: maybe, but only with responsibly sourced material. If you’re drawn to this rare native, here’s what you need to consider:

  • Never collect seeds or plants from wild populations
  • Only purchase from reputable native plant nurseries that ethically propagate their stock
  • Consider it for specialized native plant gardens or conservation projects
  • Remember that as an annual, you’ll need to allow it to self-seed or replant each year

Growing Conditions and Care

If you do decide to grow Mono Craters blazingstar, you’ll need to recreate its harsh but specific native environment:

  • Climate: Best suited for USDA hardiness zones 8-10
  • Soil: Sandy, well-draining soil is absolutely essential – think volcanic or desert-like conditions
  • Water: Very low water requirements once established; overwatering will likely kill it
  • Sun: Full sun exposure
  • Planting: Direct seed in fall for spring germination

Garden Design Ideas

This plant shines in specialized settings:

  • Desert or xerophytic landscapes
  • Native California plant collections
  • Rock gardens with sandy soil
  • Conservation or educational gardens
  • Naturalized wildflower areas (in appropriate climates)

The Bottom Line

Mono Craters blazingstar is a fascinating piece of California’s natural heritage, but it’s not for every gardener or every garden. Its rarity makes it a plant that demands respect and responsible stewardship. If you’re committed to conservation gardening and have the right growing conditions, it can be a meaningful addition to your landscape – just make sure you’re part of the solution, not part of the problem, by sourcing it ethically.

For most gardeners interested in supporting pollinators with native plants, consider more common California natives that won’t put additional pressure on vulnerable wild populations. Sometimes the best way to love a rare plant is to admire it in its natural habitat and work to protect the places where it grows wild.

Mono Craters 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 monoensis J.M. Brokaw & L. Hufford - Mono Craters blazingstar

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