North America Native Plant

Mcnulty Mine Monkeyflower

Botanical name: Mimulus cupriphilus

USDA symbol: MICU7

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

McNulty Mine Monkeyflower: A Rare California Native You Can’t Grow (And Why That’s Important) If you’ve stumbled across the name McNulty Mine monkeyflower in your quest for California native plants, you’ve discovered one of the state’s botanical mysteries. This tiny annual wildflower, scientifically known as Mimulus cupriphilus, represents the fascinating ...

McNulty Mine Monkeyflower: A Rare California Native You Can’t Grow (And Why That’s Important)

If you’ve stumbled across the name McNulty Mine monkeyflower in your quest for California native plants, you’ve discovered one of the state’s botanical mysteries. This tiny annual wildflower, scientifically known as Mimulus cupriphilus, represents the fascinating and sometimes heartbreaking world of ultra-rare native plants.

What Makes This Monkeyflower Special

The McNulty Mine monkeyflower is an annual forb – basically a soft-stemmed herbaceous plant that completes its entire life cycle in one growing season. Like other members of the monkeyflower family, it likely produces small, cheerful blooms that add a splash of color to its native habitat during its brief flowering period.

As a native species to the lower 48 states, this plant evolved specifically within California’s unique ecosystems, developing special adaptations to thrive in its particular environmental niche.

Where in the World Can You Find It?

Here’s where things get interesting – and a bit concerning. The McNulty Mine monkeyflower is found exclusively in California, and based on its common name, it appears to be associated with mining areas. Its extremely limited distribution makes it one of California’s rarest native plants.

Why You Can’t (and Shouldn’t Try to) Grow It

Unlike many native plants that make excellent garden additions, the McNulty Mine monkeyflower falls into the category of species that are too rare for cultivation. Here’s why attempting to grow this plant isn’t realistic or responsible:

  • Extremely limited natural populations make seed collection potentially harmful to the species
  • Specific growing requirements are poorly understood
  • Seeds and plants are not available through commercial sources
  • Conservation efforts should focus on protecting existing populations rather than cultivation

Better Monkeyflower Alternatives for Your Garden

Don’t let this disappointment discourage you from exploring California’s wonderful monkeyflower family! There are several other native Mimulus species that make fantastic garden plants:

  • Sticky monkeyflower (Mimulus aurantiacus) – drought-tolerant with orange blooms
  • Yellow monkeyflower (Mimulus guttatus) – loves moist spots with bright yellow flowers
  • Pink monkeyflower (Mimulus lewisii) – beautiful pink blooms for mountain gardens

The Bigger Picture: Why Rare Plants Matter

The McNulty Mine monkeyflower serves as a reminder of how fragile some of our native plant communities can be. Many California natives have incredibly specific habitat requirements, and when those habitats are disturbed or destroyed, entire species can disappear.

While you can’t grow this particular monkeyflower in your garden, you can still support California’s native plant diversity by choosing other native species that are readily available and well-suited to cultivation. Every native plant you grow helps support local ecosystems and provides habitat for native wildlife.

What You Can Do Instead

If you’re passionate about rare California natives like the McNulty Mine monkeyflower, consider:

  • Supporting local native plant societies and conservation organizations
  • Volunteering for habitat restoration projects
  • Growing other native monkeyflowers and California natives in your garden
  • Learning about and advocating for rare plant conservation

Sometimes the most meaningful way to appreciate a rare native plant is to admire it from afar while doing our part to protect the habitats that support California’s incredible botanical diversity. The McNulty Mine monkeyflower may be too rare to grow, but it serves as an important reminder of the precious natural heritage we’re working to preserve.

Mcnulty Mine Monkeyflower

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Mimulus L. - monkeyflower

Species

Mimulus cupriphilus M. Macnair - McNulty Mine monkeyflower

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