North America Native Plant

Loeseneriella

Botanical name: Loeseneriella macrantha

USDA symbol: LOMA2

Life cycle: perennial

Habit: vine

Native status: Native to Pacific Basin excluding Hawaii  

Loeseneriella: The Mystery Climber of the Pacific If you’ve stumbled upon the name Loeseneriella macrantha in your plant research, you’ve discovered one of gardening’s more elusive characters. This perennial climbing plant, commonly known simply as loeseneriella, represents the fascinating world of Pacific island flora that remains largely unknown to most ...

Loeseneriella: The Mystery Climber of the Pacific

If you’ve stumbled upon the name Loeseneriella macrantha in your plant research, you’ve discovered one of gardening’s more elusive characters. This perennial climbing plant, commonly known simply as loeseneriella, represents the fascinating world of Pacific island flora that remains largely unknown to most gardeners.

What Exactly is Loeseneriella?

Loeseneriella macrantha is a twining or climbing plant that can develop relatively long stems, which may be either woody or herbaceous depending on growing conditions. As a perennial, it returns year after year, though much about its specific characteristics remains a botanical mystery.

Where Does It Come From?

This plant calls the Pacific Basin home, specifically native to regions excluding Hawaii. You’ll find it growing naturally in Guam and Palau, where it has adapted to the unique island conditions of these tropical territories.

The Challenge for Gardeners

Here’s where things get interesting (and a bit frustrating): there’s remarkably little information available about growing Loeseneriella macrantha in cultivation. This lack of horticultural knowledge presents both a challenge and an opportunity for adventurous gardeners.

What We Don’t Know (But Wish We Did)

Unfortunately, many key details remain unknown:

  • Specific growing conditions and soil preferences
  • USDA hardiness zones
  • Mature size and growth rate
  • Pollinator and wildlife benefits
  • Propagation methods
  • Invasive potential outside its native range

Should You Try to Grow It?

The honest answer is: it’s complicated. Without clear information about this plant’s cultivation requirements or potential invasiveness, it’s difficult to recommend for most home gardeners. If you’re determined to explore this botanical mystery, proceed with extreme caution and consider these points:

  • Ensure any plant material is responsibly sourced
  • Research local regulations about importing non-native plants
  • Consider that it may require very specific tropical conditions
  • Be prepared for potential challenges with no established growing guides

Better Alternatives for Most Gardeners

If you’re drawn to climbing plants with tropical appeal, consider well-established native alternatives in your region. Many areas have beautiful native vines that provide similar aesthetic appeal with the added benefits of supporting local wildlife and being adapted to your climate.

The Bottom Line

Loeseneriella macrantha remains one of gardening’s intriguing mysteries. While its climbing habit and Pacific origins sound appealing, the lack of cultivation information makes it a challenging choice for most gardeners. Sometimes the most responsible approach is to admire these rare plants in their native habitats while choosing better-understood species for our own gardens.

If you do encounter this plant in the wild during travels to Guam or Palau, take a moment to appreciate this botanical enigma – just remember to leave it where it belongs.

Loeseneriella

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

Celastrales

Family

Hippocrateaceae Juss. - Hippocratea family

Genus

Loeseneriella A.C. Sm. - loeseneriella

Species

Loeseneriella macrantha (Korth.) A.C. Sm. - loeseneriella

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