North America Native Plant

Jungle Netvine

Botanical name: Marsdenia elliptica

USDA symbol: MAEL4

Life cycle: perennial

Habit: vine

Native status: Native to Puerto Rico  

Jungle Netvine: A Critically Rare Puerto Rican Treasure If you’ve stumbled across the name jungle netvine in your native plant research, you’ve discovered one of Puerto Rico’s most elusive botanical treasures. Marsdenia elliptica, known by this evocative common name, is a climbing vine that’s become almost mythical in conservation circles—and ...

Rare plant alert!

Region: Conservation status by state

Status: S1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Jungle Netvine: A Critically Rare Puerto Rican Treasure

If you’ve stumbled across the name jungle netvine in your native plant research, you’ve discovered one of Puerto Rico’s most elusive botanical treasures. Marsdenia elliptica, known by this evocative common name, is a climbing vine that’s become almost mythical in conservation circles—and for good reason.

What Makes Jungle Netvine Special?

Jungle netvine is a perennial climbing plant that belongs to the milkweed family. True to its name, this vine has a twining growth habit, weaving its way through the forest canopy with stems that can become woody over time. It’s the kind of plant that adds natural complexity to wild spaces, creating the layered, interconnected look that makes tropical forests so captivating.

Where Does It Come From?

This remarkable vine is native exclusively to Puerto Rico, making it a true island endemic. Unfortunately, its geographic distribution tells a sobering story—Marsdenia elliptica is found only in Puerto Rico, and even there, it’s become extraordinarily scarce.

A Conservation Crisis

Here’s where the story takes a serious turn. Jungle netvine carries a Global Conservation Status of S1, which translates to Critically Imperiled. This classification means the species is at extreme risk of disappearing forever, with typically five or fewer known populations and fewer than 1,000 individual plants remaining in the wild.

This rarity status puts jungle netvine in the category of plants that require our utmost respect and protection. It’s not a species to casually add to your garden wishlist.

Should You Grow Jungle Netvine?

Given its critically imperiled status, growing jungle netvine comes with enormous responsibility. If you’re considering this plant, here are the essential points:

  • Only use responsibly sourced material: Never collect from wild populations, and only obtain plants from reputable conservation programs or botanical institutions
  • Consider your role as a steward: Growing rare plants means becoming part of conservation efforts, not just gardening
  • Limited availability: Legitimate sources for this plant are extremely rare, if they exist at all

Growing Conditions and Care

Unfortunately, detailed cultivation information for jungle netvine is scarce, largely because so few people have had the opportunity to study or grow it. What we do know is that as a Puerto Rican native, it likely prefers:

  • Tropical to subtropical conditions
  • High humidity
  • Partial shade to filtered sunlight
  • Well-draining soil that doesn’t dry out completely
  • Support structures for its climbing habit

A Better Path Forward

Instead of seeking out this critically rare species for your garden, consider supporting conservation efforts for Puerto Rican endemic plants. Many botanical gardens and conservation organizations work tirelessly to protect species like jungle netvine.

For your own garden, explore other native vines from your region that can provide similar aesthetic appeal without the conservation concerns. Every region has beautiful climbing plants that support local ecosystems and are readily available through ethical sources.

The Bigger Picture

Jungle netvine represents something larger than just one rare plant—it’s a reminder of how much biodiversity we’ve already lost and how precious the remaining fragments truly are. Sometimes the most meaningful thing we can do as gardeners is to appreciate these species from afar while focusing our growing efforts on plants that can truly benefit from our cultivation.

If you’re passionate about rare plant conservation, consider donating to organizations working to protect Caribbean flora, or getting involved with local botanical gardens that participate in conservation programs. That might be the most impactful way to help species like jungle netvine survive for future generations.

Jungle Netvine

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

Gentianales

Family

Asclepiadaceae Borkh. - Milkweed family

Genus

Marsdenia R. Br. - marsdenia

Species

Marsdenia elliptica Decne. - jungle netvine

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