North America Native Plant

Rubber Rabbitbrush

Botanical name: Ericameria nauseosa nauseosa var. iridis

USDA symbol: ERNAI

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Chrysothamnus nauseosus (Pall. ex Pursh) Britton ssp. iridis L.C. Anderson (CHNAI)  âš˜  Chrysothamnus nauseosus (Pall. ex Pursh) Britton var. iridis (L.C. Anderson) S.L. Welsh (CHNAI2)   

Rubber Rabbitbrush: A Rare Native Gem for Your Garden If you’re looking to add a unique native shrub to your landscape, rubber rabbitbrush (Ericameria nauseosa nauseosa var. iridis) might just be the perfect choice. This distinctive variety of rabbitbrush brings both ecological value and rustic charm to gardens, though its ...

Rare plant alert!

Region: Conservation status by state

Status: S5T2T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Subspecies or variety is 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. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Rubber Rabbitbrush: A Rare Native Gem for Your Garden

If you’re looking to add a unique native shrub to your landscape, rubber rabbitbrush (Ericameria nauseosa nauseosa var. iridis) might just be the perfect choice. This distinctive variety of rabbitbrush brings both ecological value and rustic charm to gardens, though its rarity makes it a special find indeed.

What Makes This Plant Special

Rubber rabbitbrush is a perennial shrub that’s truly native to the American landscape. As a multi-stemmed woody plant, it typically stays under 13-16 feet in height, making it perfect for medium-sized garden spaces. What sets this particular variety apart is its native status combined with its uncommon nature – it’s like finding a botanical treasure!

Where Does It Come From

This native beauty calls Utah home, where it has adapted to thrive in the unique conditions of the Intermountain West. While it’s native to the lower 48 states, this specific variety has a very limited natural range.

A Word About Rarity

Important note for conservation-minded gardeners: This variety has a Global Conservation Status of S5T2T3, which indicates it may be uncommon in its natural habitat. If you’re interested in growing rubber rabbitbrush, please make sure to source your plants responsibly from reputable native plant nurseries that don’t collect from wild populations. By choosing nursery-propagated plants, you’re supporting conservation while still enjoying this special native in your garden.

Why Grow Rubber Rabbitbrush

There are several compelling reasons to consider this native shrub:

  • It’s a true native species, supporting local ecosystems
  • As a perennial shrub, it provides year-round structure to your landscape
  • Its multi-stemmed growth habit creates natural texture and interest
  • You’ll be growing something truly special and uncommon

Garden Design and Landscape Use

Rubber rabbitbrush works beautifully in native plant gardens, xeriscaping projects, and naturalized landscapes. Its shrub form makes it an excellent choice for creating natural borders, adding mid-level height to mixed plantings, or serving as a backdrop for smaller native perennials and grasses.

Growing Conditions and Care

While specific growing information for this variety is limited, rabbitbrush species are generally known for being quite adaptable. Given its Utah origins, this variety likely prefers:

  • Well-draining soils
  • Full sun exposure
  • Low to moderate water requirements once established
  • Tolerance for alkaline soils common in the Intermountain West

Planting Tips

When you do find this special variety, here are some general guidelines for success:

  • Plant in spring or fall for best establishment
  • Choose a sunny location with good drainage
  • Water regularly during the first growing season to help establish roots
  • Once established, it should be quite drought tolerant
  • Minimal pruning needed – let it grow in its natural form

The Bottom Line

Rubber rabbitbrush (Ericameria nauseosa nauseosa var. iridis) is a wonderful choice for gardeners who want to grow something truly native and special. While information about this specific variety is limited due to its uncommon nature, its native status and unique characteristics make it worth seeking out. Just remember to source it responsibly and enjoy being one of the few gardeners growing this rare native gem!

If you can’t locate this specific variety, consider asking your local native plant nursery about other rabbitbrush species or varieties that are native to your area – there are many wonderful options that can provide similar benefits to your landscape.

Rubber Rabbitbrush

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

Ericameria Nutt. - goldenbush

Species

Ericameria nauseosa (Pall. ex Pursh) G.L. Nesom & Baird - rubber rabbitbrush

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