North America Native Plant

Desert Monardella

Botanical name: Monardella exilis

USDA symbol: MOEX

Life cycle: annual

Habit: subshrub

Native status: Native to the lower 48 states  

Desert Monardella: A Rare California Native Worth Understanding If you’ve stumbled across the name desert monardella in your quest for native California plants, you’ve discovered one of the more elusive members of the mint family. Monardella exilis is a fascinating annual herb that calls the Golden State home, but don’t ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Desert Monardella: A Rare California Native Worth Understanding

If you’ve stumbled across the name desert monardella in your quest for native California plants, you’ve discovered one of the more elusive members of the mint family. Monardella exilis is a fascinating annual herb that calls the Golden State home, but don’t expect to find much chatter about it in your typical gardening circles.

What Exactly Is Desert Monardella?

Desert monardella is an annual forb – essentially a soft-stemmed plant that completes its entire life cycle in just one growing season. Unlike woody shrubs or trees, this little herb lacks any significant woody tissue and keeps its growing points right at or below ground level. Think of it as nature’s way of creating a plant that’s here for a good time, not a long time.

Where Does It Call Home?

This native beauty is found exclusively in California, making it a true Golden State endemic. As a plant native to the lower 48 states, it has deep roots in the local ecosystem – quite literally part of California’s natural heritage.

The Rarity Factor: Proceed with Caution

Here’s where things get interesting (and a bit concerning). Desert monardella carries a Global Conservation Status of S3?, which basically means its conservation status is undefined – not exactly the confidence-inspiring classification we’d hope for. This uncertain status is a red flag that should make any responsible gardener pause and think twice.

If you’re dead set on growing this particular species, please ensure you’re sourcing seeds or plants from reputable suppliers who can guarantee the material was obtained responsibly and legally. Wild collection of potentially rare plants is never a good look.

Should You Grow Desert Monardella?

Given the limited information available about this species and its questionable conservation status, most gardeners would be better served by exploring other, well-documented members of the Monardella family. The genus includes several other California natives that are better understood, more readily available, and come without the conservation concerns.

Consider these alternatives:

  • Mountain monardella (Monardella odoratissima)
  • Coyote mint (Monardella villosa)
  • Pennyroyal monardella (Monardella breweri)

The Bottom Line

While desert monardella is undoubtedly an interesting California native, its uncertain conservation status and the lack of readily available growing information make it a challenging choice for home gardeners. Sometimes the most loving thing we can do for a rare plant is to admire it from afar and choose better-documented alternatives for our gardens.

If you’re passionate about supporting California’s native plant communities, focus your efforts on the many other wonderful native species that are well-suited to cultivation and don’t come with conservation question marks. Your garden – and California’s wild spaces – will thank you for it.

Desert Monardella

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

Lamiaceae Martinov - Mint family

Genus

Monardella Benth. - monardella

Species

Monardella exilis (A. Gray) Greene - desert monardella

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