North America Non-native Plant

Senecio Murrayi

Botanical name: Senecio murrayi

USDA symbol: SEMU10

Native status: Not native but doesn't reproduce and persist in the wild

Senecio murrayi: A Mystery Plant in the Ragwort Family If you’ve stumbled across the name Senecio murrayi in your plant research, you’re not alone in wondering what exactly this species is all about. This botanical name represents one of those intriguing mysteries in the plant world – a member of ...

Senecio murrayi: A Mystery Plant in the Ragwort Family

If you’ve stumbled across the name Senecio murrayi in your plant research, you’re not alone in wondering what exactly this species is all about. This botanical name represents one of those intriguing mysteries in the plant world – a member of the vast Senecio genus that seems to have slipped through the cracks of common horticultural knowledge.

What We Know (And Don’t Know)

Senecio murrayi belongs to the Senecio genus, which is part of the massive daisy family (Asteraceae). This genus includes hundreds of species commonly known as ragworts, groundsels, and dusty millers. However, when it comes to the specifics of S. murrayi, the plant world falls surprisingly quiet.

Unlike its well-documented cousins like Senecio cineraria (dusty miller) or Senecio jacobaea (tansy ragwort), S. murrayi appears to have limited documentation in botanical literature and virtually no presence in horticultural circles. This could mean several things: it might be an extremely rare species, a regional endemic with limited distribution, or possibly a name that has fallen out of use in favor of updated botanical nomenclature.

The Challenge of Unknown Plants

For gardeners interested in native plants and ecological landscaping, encountering a species like Senecio murrayi presents a unique challenge. Without clear information about its native range, growth habits, or ecological requirements, it’s impossible to make informed decisions about whether and how to incorporate it into a garden design.

A Word of Caution

Many plants in the Senecio genus contain pyrrolizidine alkaloids, which can be toxic to humans and animals if consumed. Without specific safety information about S. murrayi, extra caution would be warranted around this species, particularly in gardens where children or pets might have access.

Better Alternatives

If you’re looking to add members of the Senecio genus to your garden, consider these better-documented and more readily available options:

  • Native groundsels: Research species native to your specific region
  • Senecio aureus (Golden ragwort): A North American native with bright yellow flowers
  • Senecio obovatus (Roundleaf groundsel): Another North American native suitable for woodland gardens

The Bottom Line

While the mystery of Senecio murrayi is intriguing from a botanical standpoint, it’s not a plant we can recommend for garden use due to the complete lack of available information about its characteristics, requirements, and safety profile. If you encounter this name in plant lists or databases, it’s worth noting that you may be dealing with outdated information or a species that requires consultation with botanical experts.

For gardeners passionate about supporting native ecosystems, focusing on well-documented native species in your area will provide much better results for both your garden and local wildlife. Sometimes in the plant world, the most responsible approach is knowing when to say we need more information rather than taking a leap into the unknown.

Senecio Murrayi

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 murrayi Bornm.

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