North America Non-native Plant

Macfadyena

Botanical name: Macfadyena

USDA symbol: MACFA

Life cycle: perennial

Habit: vine

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states âš˜ Non-native, reproduces and persists in the wild in Puerto Rico âš˜ Non-native, reproduces and persists in the wild in the U.S. Virgin Islands  

Macfadyena: A Beautiful But Problematic Climbing Vine If you’ve ever spotted a vigorous climbing vine with trumpet-shaped flowers scaling trees, fences, or buildings in the southeastern United States, you might have encountered Macfadyena. While this perennial vine certainly catches the eye with its climbing prowess and showy blooms, there’s more ...

Macfadyena: A Beautiful But Problematic Climbing Vine

If you’ve ever spotted a vigorous climbing vine with trumpet-shaped flowers scaling trees, fences, or buildings in the southeastern United States, you might have encountered Macfadyena. While this perennial vine certainly catches the eye with its climbing prowess and showy blooms, there’s more to this plant than meets the eye – and not all of it is good news for gardeners and native ecosystems.

What Exactly Is Macfadyena?

Macfadyena is a genus of climbing vines that belongs to the trumpet vine family. These perennial plants are natural-born climbers, with relatively long stems that can be either woody or herbaceous, depending on the species. The vines have an impressive ability to twist and climb their way up virtually any vertical surface, making them both fascinating and potentially troublesome.

You might hear people simply call it macfadyena, though this plant goes by various common names depending on the specific species and local preferences.

Where Does Macfadyena Come From?

Here’s where things get interesting – and a bit concerning. Macfadyena is not native to the United States. Originally from Central and South America, this climbing vine has made itself quite at home in several U.S. states and territories. Currently, you can find Macfadyena growing in Florida, Georgia, Hawaii, Louisiana, South Carolina, Texas, Puerto Rico, and the U.S. Virgin Islands.

The plant has proven remarkably adaptable, establishing itself as a non-native species that reproduces spontaneously in the wild without any human help. Once it gets going, it tends to persist and spread – which brings us to our next important point.

The Invasive Issue: Why You Should Think Twice

While Macfadyena’s climbing ability and flowers might seem appealing for landscape use, this plant comes with serious ecological baggage. Many species within the Macfadyena genus, particularly the well-known Cat’s Claw Vine, are considered highly invasive in areas where they’ve been introduced.

These vines don’t just climb – they conquer. They can quickly smother native vegetation, climb high into tree canopies, and create dense mats that block sunlight from reaching other plants below. Their aggressive growth habit means they often outcompete native species that wildlife depends on for food and habitat.

Should You Plant Macfadyena?

Given its invasive tendencies and non-native status, we strongly recommend against planting Macfadyena in your garden or landscape. While it might seem like an easy solution for covering an unsightly fence or wall, the environmental costs far outweigh any aesthetic benefits.

If you’re looking for a climbing vine to add vertical interest to your garden, consider these native alternatives instead:

  • American Groundnut (Apios americana) – produces fragrant, reddish-brown flowers
  • Coral Honeysuckle (Lonicera sempervirens) – beloved by hummingbirds
  • Virginia Creeper (Parthenocissus quinquefolia) – offers stunning fall color
  • American Bittersweet (Celastrus scandens) – provides colorful berries for birds

If You Already Have Macfadyena

If you discover Macfadyena already growing on your property, the best approach is removal. This can be challenging given the plant’s vigorous growth habit and ability to resprout from root fragments. You may need to cut the vines repeatedly and potentially use targeted herbicide applications on cut stems to prevent regrowth.

Always dispose of plant material responsibly – never compost Macfadyena or dump it in natural areas where it could establish new populations.

The Bottom Line

While Macfadyena certainly has its charms as a robust climbing vine, its invasive nature makes it a poor choice for responsible gardening. By choosing native climbing plants instead, you’ll create a more sustainable landscape that supports local wildlife while still achieving the vertical coverage and natural beauty you’re after. Your local ecosystem – and future generations of gardeners – will thank you for making the environmentally conscious choice.

Macfadyena

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

Scrophulariales

Family

Bignoniaceae Juss. - Trumpet-creeper family

Genus

Macfadyena A. DC. - macfadyena

Species

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