North America Native Plant

Noyau Vine

Botanical name: Merremia dissecta

USDA symbol: MEDI2

Life cycle: perennial

Habit: vine

Native status: Native to the lower 48 states âš˜ Native to Puerto Rico âš˜ Native to the U.S. Virgin Islands  

Synonyms: Convolvulus dissectus Jacq. (CODI9)  âš˜  Ipomoea dissecta (Jacq.) Pursh (IPDI)  âš˜  Ipomoea sinuata Ortega (IPSI)  âš˜  Operculina dissecta (Jacq.) House (OPDI4)   

Noyau Vine: A Lesser-Known Native Treasure for Southern Gardens If you’re looking for a native vine that won’t take over your entire neighborhood (we’re looking at you, kudzu!), let me introduce you to noyau vine. This unassuming member of the morning glory family might not be the flashiest plant in ...

Noyau Vine: A Lesser-Known Native Treasure for Southern Gardens

If you’re looking for a native vine that won’t take over your entire neighborhood (we’re looking at you, kudzu!), let me introduce you to noyau vine. This unassuming member of the morning glory family might not be the flashiest plant in the garden center, but it’s got some serious native credentials that make it worth considering for your landscape.

What Exactly is Noyau Vine?

Noyau vine (Merremia dissecta) is a perennial herbaceous vine that’s truly American-made. Unlike some of its more aggressive cousins in the morning glory family, this native beauty knows how to behave itself in the garden. It’s classified as a forb herb, which basically means it’s not woody but returns year after year from its root system.

You might also see this plant listed under several scientific synonyms, including Ipomoea dissecta or Convolvulus dissectus, which can make plant shopping a bit confusing. But don’t worry – they’re all the same lovely native vine.

Where Does Noyau Vine Call Home?

This vine is native to the southeastern United States, including Alabama, Florida, Georgia, Louisiana, Mississippi, and Texas. Interestingly, it also pops up in Pennsylvania and extends its range to include Puerto Rico and the U.S. Virgin Islands. That’s quite a range for a plant that many gardeners have never heard of!

What Makes Noyau Vine Garden-Worthy?

Here’s where noyau vine really shines as a garden choice:

  • Native plant credentials: Supporting local ecosystems never goes out of style
  • Low maintenance: Once established, it’s quite drought tolerant
  • Delicate beauty: Heart-shaped leaves that are often deeply lobed or dissected give it a lacy, delicate appearance
  • Small white flowers: Subtle blooms that add charm without overwhelming other plants
  • Well-behaved: Unlike some vines, this one won’t swallow your shed

Growing Conditions and Care

Noyau vine is surprisingly adaptable, which explains its wide natural range. Here’s what it prefers:

  • Sunlight: Full sun to partial shade
  • Soil: Sandy, well-draining soils (it’s quite tolerant of poor soils)
  • Water: Drought tolerant once established, but appreciates occasional watering
  • Climate: Hardy in USDA zones 8-11

The plant’s wetland status varies by region. In most areas, it’s considered Facultative Upland, meaning it usually prefers non-wetland conditions but can tolerate some moisture. This flexibility makes it a great choice for those tricky spots in your garden that are sometimes wet, sometimes dry.

Where to Use Noyau Vine in Your Landscape

This vine works beautifully in:

  • Native plant gardens and natural landscapes
  • Areas where you want gentle ground cover with some vertical interest
  • Sandy or poor soil areas where other plants struggle
  • Coastal gardens (given its tolerance for challenging conditions)
  • Wildlife-friendly landscapes supporting native ecosystems

Planting and Care Tips

Getting noyau vine established is fairly straightforward:

  • Plant in spring after the last frost
  • Choose a location with good drainage – this vine doesn’t like wet feet
  • Water regularly the first season to help establish roots
  • Once established, minimal care is needed
  • Provide some support if you want it to climb, or let it trail as ground cover

The Bottom Line

Noyau vine might not be the star of your garden, but it’s definitely a reliable supporting player. If you’re building a native plant garden, working with challenging growing conditions, or simply want a low-maintenance vine that supports local ecosystems, this southeastern native deserves a spot on your planting list. Plus, there’s something satisfying about growing a plant that your neighbors probably can’t identify – it’s like having a secret garden ingredient!

Just remember to source your plants from reputable native plant nurseries to ensure you’re getting the true species and supporting responsible propagation practices.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Arid West

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Atlantic and Gulf Coastal Plain

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Caribbean

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Eastern Mountains and Piedmont

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Great Plains

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Noyau Vine

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

Solanales

Family

Convolvulaceae Juss. - Morning-glory family

Genus

Merremia Dennst. ex Endl. - woodrose

Species

Merremia dissecta (Jacq.) Hallier f. - noyau vine

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