North America Native Plant

Arizona Gumweed

Botanical name: Grindelia arizonica var. stenophylla

USDA symbol: GRARS

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Arizona Gumweed: A Lesser-Known Native Wildflower If you’re looking to add authentic southwestern character to your native plant garden, Arizona gumweed (Grindelia arizonica var. stenophylla) might just be the under-the-radar native you’ve been searching for. This perennial wildflower represents the kind of specialized regional flora that makes native gardening so ...

Arizona Gumweed: A Lesser-Known Native Wildflower

If you’re looking to add authentic southwestern character to your native plant garden, Arizona gumweed (Grindelia arizonica var. stenophylla) might just be the under-the-radar native you’ve been searching for. This perennial wildflower represents the kind of specialized regional flora that makes native gardening so rewarding – and occasionally challenging.

What is Arizona Gumweed?

Arizona gumweed is a native perennial forb, which simply means it’s a non-woody flowering plant that comes back year after year. As a forb, it lacks the woody stems of shrubs and trees, instead producing soft, herbaceous growth that dies back seasonally while the root system persists underground.

This particular variety belongs to the Grindelia genus, a group of plants known for their resinous, somewhat sticky flower buds – hence the gumweed common name that’s shared among several species in this plant family.

Where Does It Grow Naturally?

Arizona gumweed is native to the southwestern United States, specifically found growing wild in Colorado and New Mexico. This limited geographic range makes it a true regional specialty – a plant that’s perfectly adapted to the unique conditions of the American Southwest.

Why Consider Arizona Gumweed for Your Garden?

Here’s where things get interesting – and a bit challenging. While Arizona gumweed has all the hallmarks of a potentially valuable native plant, specific information about its garden performance, growing requirements, and cultivation needs is quite limited. This isn’t uncommon with highly specialized native varieties that haven’t made their way into mainstream horticulture.

The Native Plant Advantage

What we do know is compelling:

  • True native status: This plant evolved specifically in southwestern ecosystems
  • Perennial nature: Once established, it should return year after year
  • Regional adaptation: Perfectly suited to local climate and soil conditions
  • Ecological authenticity: Supports the plant communities it naturally belongs to

The Growing Challenge

Here’s where I need to be completely honest with you: specific growing information for this particular variety of Arizona gumweed is remarkably scarce. While other Grindelia species are cultivated and well-documented, Grindelia arizonica var. stenophylla appears to be primarily known in botanical circles rather than gardening ones.

This presents both a challenge and an opportunity for adventurous native plant gardeners. You’d essentially be pioneering the cultivation of a plant that’s received little horticultural attention.

Should You Grow Arizona Gumweed?

The decision ultimately depends on your gardening philosophy and risk tolerance:

Consider It If:

  • You’re passionate about growing truly local native plants
  • You enjoy the challenge of working with lesser-known species
  • You live within its natural range (Colorado or New Mexico)
  • You’re willing to experiment and learn through trial

Look Elsewhere If:

  • You prefer plants with established growing guides
  • You want guaranteed garden performance
  • You’re new to native plant gardening
  • You need plants with known wildlife benefits

A Word About Sourcing

If you do decide to try growing Arizona gumweed, sourcing will likely be your biggest challenge. This isn’t a plant you’ll find at your local garden center. You’d need to seek out specialized native plant nurseries, botanical gardens, or seed exchanges that focus on regional southwestern flora.

Always ensure any plant material is ethically and legally obtained – never collect from wild populations.

The Bottom Line

Arizona gumweed represents the fascinating world of highly specialized native plants that exist just beyond the edge of common cultivation. While it may not be the right choice for every native garden, it offers the dedicated native plant enthusiast a chance to work with authentic regional flora.

For most gardeners seeking southwestern natives with similar characteristics, you might consider better-documented alternatives like blanketflower (Gaillardia species), desert marigold (Baileya multiradiata), or other well-established native forbs that offer the regional authenticity you’re seeking with more reliable growing information.

Sometimes the most interesting plants are the ones that keep a little mystery – and Arizona gumweed certainly qualifies as one of those intriguing botanical puzzles.

Arizona Gumweed

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Grindelia Willd. - gumweed

Species

Grindelia arizonica A. Gray - Arizona gumweed

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