North America Native Plant

Huachuca Mountain Ragwort

Botanical name: Senecio multidentatus var. huachucanus

USDA symbol: SEMUH

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Senecio huachucanus A. Gray (SEHU)   

Huachuca Mountain Ragwort: A Rare Arizona Native Worth Knowing If you’re passionate about native gardening and live in Arizona, you might want to get acquainted with Huachuca Mountain ragwort (Senecio multidentatus var. huachucanus). This lesser-known perennial forb represents the kind of specialized native plant that makes southwestern gardening so fascinating—and ...

Rare plant alert!

Region: Conservation status by state

Status: S2S4T2: Status is uncertain but is somewhere between the following rankings: 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 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) ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Huachuca Mountain Ragwort: A Rare Arizona Native Worth Knowing

If you’re passionate about native gardening and live in Arizona, you might want to get acquainted with Huachuca Mountain ragwort (Senecio multidentatus var. huachucanus). This lesser-known perennial forb represents the kind of specialized native plant that makes southwestern gardening so fascinating—and occasionally challenging.

What Makes This Plant Special?

Huachuca Mountain ragwort is a true Arizona endemic, meaning it naturally occurs only within the state’s borders. As a member of the sunflower family (Asteraceae), it shares the characteristic composite flowers that make ragworts recognizable, though this particular variety has carved out its own unique niche in Arizona’s diverse landscape.

This perennial forb lacks the woody stems of shrubs and trees, instead producing herbaceous growth that dies back seasonally while maintaining a persistent root system. It’s also known by the synonym Senecio huachucanus, so don’t be confused if you encounter it under that name in older references.

Where Does It Grow?

As its common name suggests, this ragwort is associated with Arizona’s mountainous regions. Its limited geographic distribution makes it a true southwestern specialty—you won’t find this plant growing naturally anywhere else in the United States.

The Rarity Factor: What Gardeners Need to Know

Here’s where things get interesting—and important. Huachuca Mountain ragwort carries a Global Conservation Status of S2S4T2, which indicates some level of conservation concern. While the exact implications of this status aren’t fully defined in our records, it suggests this plant deserves special consideration.

If you’re interested in growing this plant, please ensure you source it responsibly:

  • Purchase only from reputable native plant nurseries
  • Never collect plants from wild populations
  • Verify that any plant material was ethically propagated
  • Consider this an opportunity to support conservation through cultivation

Garden Potential and Limitations

The honest truth? We don’t have complete growing information for Huachuca Mountain ragwort, which reflects its specialized nature and limited cultivation history. What we do know is that it’s a perennial forb adapted to Arizona conditions, suggesting it likely prefers:

  • Well-draining soils typical of mountainous regions
  • Climate conditions similar to its native Arizona habitat
  • Minimal water once established (following typical native plant patterns)

Without specific data on its growing requirements, wildlife benefits, or garden performance, this plant falls into the advanced native gardener category. It’s best suited for gardeners who enjoy experimenting with rare natives and can provide attentive care while the plant establishes.

Should You Grow It?

Huachuca Mountain ragwort might be right for you if:

  • You’re an experienced native plant gardener in Arizona
  • You’re passionate about preserving rare native species
  • You have space for experimental plantings
  • You can source plants responsibly from reputable nurseries

However, if you’re new to native gardening or looking for well-documented, easy-care options, you might want to start with more common Arizona natives and work your way up to rarities like this one.

The Bottom Line

Huachuca Mountain ragwort represents the fascinating complexity of regional native flora—plants so specialized that they exist nowhere else on Earth. While we don’t have all the cultivation details sorted out, that’s part of what makes growing rare natives both challenging and rewarding.

If you do decide to try growing this unique Arizona endemic, consider yourself a participant in conservation through cultivation. Just remember to source responsibly and be patient as both you and the gardening community learn more about this special plant’s needs and potential.

Huachuca Mountain Ragwort

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

Senecio L. - ragwort

Species

Senecio multidentatus Sch. Bip. ex Hemsl. - Huachuca Mountain ragwort

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