North America Native Plant

Amador County Vervain

Botanical name: Verbena ×clemensiorum

USDA symbol: VECL2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Amador County Vervain: A Rare California Native Worth Knowing If you’re a native plant enthusiast always on the lookout for something truly special, Amador County vervain might just pique your interest. This California native, scientifically known as Verbena ×clemensiorum, represents one of those botanical treasures that reminds us how much ...

Amador County Vervain: A Rare California Native Worth Knowing

If you’re a native plant enthusiast always on the lookout for something truly special, Amador County vervain might just pique your interest. This California native, scientifically known as Verbena ×clemensiorum, represents one of those botanical treasures that reminds us how much diversity exists right in our own backyards.

What Makes This Plant Special

Amador County vervain is what botanists call a hybrid species – notice that little × in its scientific name? That symbol tells us this plant is the result of two other vervain species crossing paths, creating something entirely new. As a native forb (that’s gardener-speak for a non-woody flowering plant), it joins the ranks of California’s incredible herbaceous plant diversity.

This vervain can live as either an annual or perennial, giving it flexibility in different growing conditions. Like other forbs, it lacks the woody stems of shrubs and trees, instead putting its energy into flowers and foliage that emerge fresh each growing season.

Where You’ll Find It Growing

As its common name suggests, this vervain calls California home, specifically with ties to Amador County. It’s truly a Golden State original, evolved to thrive in California’s unique climate and growing conditions.

The Challenge of Growing Amador County Vervain

Here’s where things get interesting – and a bit challenging. This particular vervain hybrid is so specialized that detailed growing information is surprisingly scarce. While we know it’s a California native forb that can behave as either an annual or perennial, specific details about its preferred growing conditions, care requirements, and garden performance are limited in readily available sources.

What This Means for Your Garden

If you’re considering adding Amador County vervain to your native plant collection, you’ll be entering somewhat uncharted territory. This could be exciting for the adventurous gardener who enjoys experimenting with rare natives, but it also means you’ll need to:

  • Source plants or seeds from reputable native plant societies or specialized nurseries
  • Be prepared for some trial and error in finding the right growing conditions
  • Connect with local native plant groups who might have experience with rare California vervains
  • Consider it more of a conservation project than a typical garden addition

Alternative Vervains to Consider

If you’re drawn to the vervain family but want something more readily available, consider other California native Verbena species that are better documented and easier to grow. These alternatives can give you that vervain charm with more predictable results and clearer growing guidelines.

The Bottom Line

Amador County vervain represents the fascinating world of California’s native plant diversity, but it’s definitely a plant for the specialist rather than the casual gardener. If you do decide to seek it out, you’ll be participating in the preservation of California’s botanical heritage – just be prepared for a gardening adventure that’s more about conservation than decoration.

Sometimes the most interesting plants are the ones that keep a little mystery about themselves, and Verbena ×clemensiorum certainly fits that bill!

Amador County Vervain

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

Verbena L. - vervain

Species

Verbena ×clemensiorum Moldenke [lasiostachys × officinalis] - Amador County vervain

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