Non-native Plants

Achillea Erbarotta Ssp. Rupestris

Achillea erbarotta ssp. rupestris

USDA symbol: ACERR

If you’ve stumbled across the name Achillea erbarotta ssp. rupestris in your plant research, you’re not alone in scratching your head. This particular subspecies is something of an enigma in the gardening world, with very little reliable information available to help gardeners make informed decisions about growing it. Achillea erbarotta ...

Achillea erbarotta ssp. rupestris: A Mysterious Member of the Yarrow Family

If you’ve stumbled across the name Achillea erbarotta ssp. rupestris in your plant research, you’re not alone in scratching your head. This particular subspecies is something of an enigma in the gardening world, with very little reliable information available to help gardeners make informed decisions about growing it.

What We Know (And Don’t Know)

Achillea erbarotta ssp. rupestris belongs to the Achillea genus, commonly known as yarrows, which are typically hardy perennial herbs in the daisy family. This subspecies has a synonym of Achillea rupestris Porta, but beyond that basic taxonomic information, reliable details about this plant are surprisingly scarce.

Unfortunately, we don’t have clear information about:

  • Common names
  • Native geographic range
  • Growth habits and appearance
  • Growing requirements
  • Wildlife or pollinator benefits
  • Invasive or conservation status

The Challenge with Obscure Plant Names

Sometimes in the plant world, you’ll encounter scientific names that are difficult to verify or may represent plants that are:

  • Extremely rare or localized
  • Taxonomically questionable or outdated
  • Regional varieties with limited documentation
  • Possible misidentifications

A Safer Alternative: Well-Known Yarrows

If you’re interested in growing yarrows in your garden, consider these better-documented and readily available options:

  • Common Yarrow (Achillea millefolium) – Native to many regions and excellent for pollinators
  • Sneezewort (Achillea ptarmica) – White-flowered species good for wet areas
  • Greek Yarrow (Achillea ageratifolia) – Compact alpine variety

Before You Plant

If you’ve somehow acquired seeds or plants labeled as Achillea erbarotta ssp. rupestris, here’s what we’d recommend:

  • Verify the plant’s identity with local botanists or extension services
  • Research whether it’s actually native to your area
  • Check if it has any invasive tendencies in your region
  • Consider whether a well-known native yarrow might better serve your garden goals

The Bottom Line

While the mystery surrounding Achillea erbarotta ssp. rupestris might intrigue plant collectors, the lack of reliable growing information makes it a risky choice for most gardeners. Your garden (and local ecosystem) will likely benefit more from choosing well-documented native plants with known growth habits and ecological benefits.

When in doubt, it’s always best to stick with plants that have proven track records and clear cultivation guidelines. Your local native plant society can help you identify yarrow species that are truly native to your area and will thrive in your garden conditions.

Achillea erbarotta ssp. rupestris is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Achillea erbarotta ssp. rupestris is also known as:

Achillea rupestris | USDA symbol: ACRU13

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Asterales
Family: Asteraceae Bercht. & J. Presl - Aster family
Genus: Achillea L. - yarrow

Species: Achillea erba-rotta All.

Subspecies: Achillea erba-rotta All. ssp. rupestris (Porta) I. Richardson

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