North America Non-native Plant

Ononis Speciosa

Botanical name: Ononis speciosa

USDA symbol: ONSP2

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

Ononis speciosa: The Mystery Plant That’s Hard to Pin Down If you’ve come across the name Ononis speciosa in your gardening research, you might be scratching your head trying to find more information about this elusive plant. Don’t worry – you’re not alone in your confusion! This botanical name presents ...

Ononis speciosa: The Mystery Plant That’s Hard to Pin Down

If you’ve come across the name Ononis speciosa in your gardening research, you might be scratching your head trying to find more information about this elusive plant. Don’t worry – you’re not alone in your confusion! This botanical name presents quite the puzzle for gardeners and plant enthusiasts alike.

What We Know (And What We Don’t)

Ononis speciosa belongs to the genus Ononis, which is part of the legume family (Fabaceae). Plants in this genus are commonly known as restharrows and are typically found in Mediterranean regions and parts of Europe. However, when it comes to the specific species speciosa, reliable information is surprisingly scarce.

The botanical databases and gardening resources that usually provide comprehensive plant information come up short when searching for Ononis speciosa specifically. This could mean several things: it might be an extremely rare species, a regional name that’s not widely recognized, or possibly even a misidentification or outdated botanical name.

The Challenge for Gardeners

Without verified information about Ononis speciosa’s native range, growing requirements, or garden characteristics, it’s impossible to provide reliable guidance on whether this plant would be a good choice for your garden. We don’t know:

  • Where it naturally occurs
  • What growing conditions it prefers
  • How large it gets or what it looks like
  • Whether it has any invasive tendencies
  • What wildlife benefits it might provide

What Should You Do?

If you’re interested in growing what you believe to be Ononis speciosa, here are some practical steps:

  • Double-check the identification: Make sure you have the correct botanical name. Sometimes plant tags or references contain errors.
  • Consult local experts: Reach out to your local botanical garden, university extension office, or native plant society for guidance.
  • Consider verified alternatives: If you’re looking for plants in the Ononis genus, research well-documented species like Ononis repens (common restharrow) instead.
  • Source responsibly: If you do find a plant sold under this name, ensure it comes from a reputable nursery that can provide accurate information about the plant’s origin and characteristics.

A Word of Caution

When dealing with uncertain plant identifications, it’s always better to err on the side of caution. Planting unknown species without understanding their growth habits, native status, or potential environmental impacts could lead to problems down the road.

The Bottom Line

While the mystery of Ononis speciosa remains unsolved, this situation highlights the importance of accurate plant identification in gardening. If you’re passionate about native plants or Mediterranean-style gardening, consider focusing on well-documented species within the Ononis genus or similar legumes that offer verified information about their growing requirements and ecological benefits.

Remember, successful gardening often starts with choosing plants you can learn about and understand – and sometimes that means letting go of the mysterious ones until more information becomes available!

Ononis Speciosa

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Ononis L. - restharrow

Species

Ononis speciosa Lag.

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