North America Native Plant

Red-vein Yellow Loosestrife

Botanical name: Lysimachia lamiatilis

USDA symbol: LYLA8

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Red-Vein Yellow Loosestrife: A Mysterious Native Hawaiian Treasure If you’re a plant enthusiast with a passion for Hawaiian native flora, you’ve probably stumbled across some pretty fascinating species. But red-vein yellow loosestrife (Lysimachia lamiatilis) might just be one of the most intriguing—and elusive—natives you’ll encounter. What is Red-Vein Yellow Loosestrife? ...

Red-Vein Yellow Loosestrife: A Mysterious Native Hawaiian Treasure

If you’re a plant enthusiast with a passion for Hawaiian native flora, you’ve probably stumbled across some pretty fascinating species. But red-vein yellow loosestrife (Lysimachia lamiatilis) might just be one of the most intriguing—and elusive—natives you’ll encounter.

What is Red-Vein Yellow Loosestrife?

Red-vein yellow loosestrife is a perennial plant that’s entirely native to Hawaii. This woody shrub typically stays under 13-16 feet tall and develops multiple stems from the ground, though it can occasionally grow taller or develop a single stem depending on its environment.

Unlike its more common loosestrife cousins found on the mainland, this Hawaiian endemic has carved out its own unique niche in the island ecosystem.

Where Does It Grow?

This native beauty calls only Hawaii home, making it a true island endemic. You won’t find red-vein yellow loosestrife growing wild anywhere else in the world—it’s exclusively Hawaiian through and through.

Should You Plant Red-Vein Yellow Loosestrife?

Here’s where things get a bit tricky. While this native Hawaiian plant would theoretically be a wonderful addition to island gardens, there’s surprisingly little information available about its cultivation requirements, growth habits, or availability in the nursery trade.

As a Hawaiian native, it would certainly support local ecosystems better than many introduced species. However, the lack of readily available growing information means you might be embarking on a bit of a gardening adventure if you decide to seek it out.

The Challenge of Growing Mysterious Natives

Unfortunately, many details about red-vein yellow loosestrife remain unknown, including:

  • Specific growing conditions and soil preferences
  • Water requirements and drought tolerance
  • Pollinator relationships and wildlife benefits
  • Propagation methods and seed availability
  • Specific garden applications and landscape uses

This lack of information isn’t uncommon with lesser-known native species, especially those that may be rare or have limited distribution even within their native range.

What This Means for Gardeners

If you’re passionate about Hawaiian native plants and happen to encounter red-vein yellow loosestrife through specialty native plant sources, it could be worth exploring. Just be prepared for some trial and error as you learn its preferences.

In the meantime, consider these better-documented Hawaiian native alternatives that can provide similar shrub structure in your landscape:

  • Hawaiian native hibiscus species
  • Native Hawaiian mints and sages
  • Other well-researched native shrubs available through local native plant societies

The Bigger Picture

Red-vein yellow loosestrife represents something special in the world of native plants—it’s a reminder that there are still botanical treasures waiting to be better understood and appreciated. While we may not have all the answers about growing this particular species, supporting research into Hawaiian native plants and their cultivation helps preserve these unique island ecosystems for future generations.

If you’re lucky enough to encounter this mysterious native, consider yourself part of a select group of gardeners exploring the less-traveled paths of Hawaiian horticulture.

Red-vein Yellow Loosestrife

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Primulales

Family

Primulaceae Batsch - Primrose family

Genus

Lysimachia L. - yellow loosestrife

Species

Lysimachia lamiatilis H. St. John - red-vein yellow loosestrife

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