Native Plants

Metcalf’s Groundsel

Packera neomexicana var. metcalfei

USDA symbol: PANEM2

perennial subshrub

Lower 48 states: native

If you’re looking to add authentic southwestern character to your garden, Metcalf’s groundsel might just be the native gem you’ve been searching for. This perennial forb brings a touch of wild beauty that’s perfectly adapted to the arid landscapes of the American Southwest. Scientifically known as Packera neomexicana var. metcalfei, ...

Metcalf’s Groundsel may be listed as rare in your area.
Global Conservation Status

Status: S5T3?Q | Secure: At low or no risk of extinction in the area due to an extensive range, abundant populations, and with little to no concern of declines or threats.

Metcalf’s Groundsel: A Native Southwestern Treasure

If you’re looking to add authentic southwestern character to your garden, Metcalf’s groundsel might just be the native gem you’ve been searching for. This perennial forb brings a touch of wild beauty that’s perfectly adapted to the arid landscapes of the American Southwest.

What Makes Metcalf’s Groundsel Special?

Scientifically known as Packera neomexicana var. metcalfei, Metcalf’s groundsel is a true native of the lower 48 states, specifically calling Arizona and New Mexico home. As a member of the sunflower family, this plant has evolved alongside the region’s unique climate and wildlife for thousands of years.

You might also encounter this plant listed under its former names in older gardening references: Senecio metcalfei or Senecio neomexicanus var. metcalfei. Don’t let the name changes confuse you – it’s all the same wonderful plant!

Where Does It Grow?

This southwestern native has a relatively limited range, naturally occurring in Arizona and New Mexico. Its restricted distribution makes it a special addition to gardens within its native region, where it thrives in conditions that might challenge non-native plants.

  • Species observed
  • No observations

Growth Habits Worth Knowing

As a perennial forb, Metcalf’s groundsel comes back year after year without developing woody stems like shrubs or trees. Instead, it maintains a herbaceous growth pattern, with its growing points located at or below ground level – a smart adaptation for surviving harsh southwestern conditions.

This growth strategy means the plant can weather difficult seasons by retreating to its underground parts, then emerge again when conditions improve. It’s nature’s way of playing it safe in an unpredictable climate!

Should You Plant It?

There are several compelling reasons to consider adding Metcalf’s groundsel to your landscape:

  • Native authenticity: Supporting local ecosystems by choosing plants that belong
  • Climate adaptation: Already perfectly suited to southwestern growing conditions
  • Low maintenance potential: Native plants typically require less intervention once established
  • Ecological connections: Provides habitat and resources for local wildlife

A Word About Rarity

Before you start planning your planting, there’s something important to consider. Metcalf’s groundsel has a somewhat uncertain conservation status, which means we’re not entirely sure how common or rare it might be in the wild. This uncertainty suggests it’s worth treating with extra care.

If you decide to grow this plant, make sure you source it responsibly. Look for reputable native plant nurseries that propagate their stock rather than wild-collecting. This approach ensures you’re not contributing to any potential decline of wild populations while still enjoying this beautiful native in your garden.

Best Gardening Practices

While specific growing information for this particular variety is limited, its native range gives us important clues about its preferences. Plants from Arizona and New Mexico typically appreciate:

  • Well-draining soils (soggy conditions are usually a no-go)
  • Tolerance for temperature extremes
  • Adaptation to lower rainfall patterns
  • Ability to handle intense sunlight

When planning your garden space, consider placing Metcalf’s groundsel in areas that mimic its natural habitat – perhaps in a xeriscape design, native plant garden, or naturalized landscape where it can blend with other southwestern natives.

The Bottom Line

Metcalf’s groundsel represents the kind of plant that makes native gardening so rewarding – it’s authentically local, environmentally appropriate, and connects your garden to the broader landscape. While we may not know every detail about growing this particular variety, its native status and perennial nature suggest it could be a valuable addition to the right southwestern garden.

Just remember to source it responsibly and give it the well-draining, sun-loving conditions that southwestern natives typically prefer. With a little care and the right location, you might find yourself with a thriving piece of authentic regional flora that brings both beauty and ecological value to your landscape.

Packera neomexicana var. metcalfei 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. Packera neomexicana var. metcalfei is also known as:

Senecio metcalfei | USDA symbol: SEME7
Senecio neomexicanus Gray var. metcalfei | USDA symbol: SENEM

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: Packera Á. Löve & D. Löve - ragwort

Species: Packera neomexicana (A. Gray) W.A. Weber & Á. Löve - New Mexico groundsel

Variety: Packera neomexicana (A. Gray) W.A. Weber & Á. Löve var. metcalfei (Greene) D.K. Trock & T.M. Barkley - Metcalf's groundsel

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