North America Native Plant

Arhyrautia

Botanical name: ×Argyrautia

USDA symbol: ARGYR4

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Arhyrautia (×Argyrautia): A Mysterious Hawaiian Native If you’re a plant enthusiast who loves discovering rare and unusual species, you might have stumbled across the name arhyrautia, scientifically known as ×Argyrautia. This perennial shrub is listed as native to Hawaii, but here’s where things get interesting – and a bit puzzling. ...

Arhyrautia (×Argyrautia): A Mysterious Hawaiian Native

If you’re a plant enthusiast who loves discovering rare and unusual species, you might have stumbled across the name arhyrautia, scientifically known as ×Argyrautia. This perennial shrub is listed as native to Hawaii, but here’s where things get interesting – and a bit puzzling.

What We Know (And What We Don’t)

Arhyrautia is classified as a perennial shrub that’s native to Hawaii. Like many Hawaiian native plants, it’s described as a multi-stemmed woody plant that typically stays under 13-16 feet tall, with several stems growing from or near the ground.

However, if you’re trying to research this plant for your garden, you might find yourself scratching your head. Information about ×Argyrautia is remarkably scarce, even in comprehensive plant databases and Hawaiian flora guides.

Geographic Distribution

This plant is documented as growing exclusively in Hawaii, making it an endemic species to the Hawaiian Islands.

The Mystery Factor

Here’s where we need to be completely honest with you: ×Argyrautia appears to be either an extremely rare, undocumented species, or there may be some confusion with the botanical naming. The × symbol typically indicates a hybrid plant, but without more detailed botanical information, it’s difficult to confirm what parent species might be involved.

Should You Try to Grow Arhyrautia?

Given the lack of available information about this plant, we can’t provide specific growing recommendations. If you’re interested in Hawaiian native plants for your garden, here are some better-documented alternatives to consider:

  • ʻŌhiÊ»a lehua (Metrosideros polymorpha) – Hawaii’s iconic flowering tree
  • Koa (Acacia koa) – A beautiful native tree with distinctive curved leaves
  • Naupaka (Scaevola taccada) – A hardy coastal shrub
  • Pilo (Coprosma species) – Native shrubs perfect for landscaping

What This Means for Gardeners

If you’ve encountered ×Argyrautia in plant lists or databases, we’d recommend:

  • Double-checking the botanical name with local Hawaiian botanical experts
  • Consulting with native plant societies in Hawaii
  • Considering well-documented Hawaiian native alternatives
  • Reaching out to botanical gardens or universities in Hawaii for clarification

Supporting Hawaiian Native Plant Conservation

While we can’t provide specific information about growing arhyrautia, supporting Hawaiian native plant conservation is always worthwhile. Many Hawaiian native species face threats from habitat loss and invasive plants, so choosing documented native species for your landscape helps support local ecosystems.

If you’re gardening in Hawaii or trying to create a Hawaiian-themed landscape elsewhere, focus on well-researched native species that have established growing guidelines and are available through reputable native plant nurseries.

The plant world is full of mysteries, and ×Argyrautia appears to be one of them. Until more information becomes available, stick with the many other beautiful Hawaiian native plants that are well-documented and readily available for home gardeners.

Arhyrautia

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

×Argyrautia Sherff - arhyrautia

Species

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