North America Native Plant

Maui Tetramolopium

Botanical name: Tetramolopium arenarium arenarium var. confertum

USDA symbol: TEARC

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Maui Tetramolopium: A Rare Hawaiian Native Worth Protecting Meet the Maui tetramolopium (Tetramolopium arenarium arenarium var. confertum), a little-known Hawaiian native that deserves our attention—not just for its unique beauty, but for its precarious conservation status. This perennial shrub represents one of Hawaii’s botanical treasures, quietly growing in its island ...

Rare plant alert!

Region: Conservation status by state

Status: S1TH: 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) ⚘

Maui Tetramolopium: A Rare Hawaiian Native Worth Protecting

Meet the Maui tetramolopium (Tetramolopium arenarium arenarium var. confertum), a little-known Hawaiian native that deserves our attention—not just for its unique beauty, but for its precarious conservation status. This perennial shrub represents one of Hawaii’s botanical treasures, quietly growing in its island home while facing an uncertain future.

What Makes This Plant Special?

The Maui tetramolopium is a multi-stemmed woody shrub that typically stays under 13-16 feet tall, making it a manageable size for most landscapes. As a true Hawaiian native, this plant has evolved specifically to thrive in the unique conditions of the Hawaiian Islands, particularly on Maui.

What sets this plant apart isn’t just its native heritage—it’s its rarity. With a Global Conservation Status of S1TH, this species exists in very limited numbers, making every individual plant incredibly valuable for conservation efforts.

Where Does It Come From?

This endemic Hawaiian species calls the islands home, with its primary distribution centered in Hawaii. The plant has adapted over countless generations to the specific climate, soil conditions, and ecosystem relationships found only in this Pacific paradise.

Should You Plant Maui Tetramolopium?

The short answer: proceed with extreme caution and responsibility.

While supporting native plants is always admirable, the rarity of Maui tetramolopium means that any cultivation efforts must be approached thoughtfully. If you’re considering adding this plant to your garden, here’s what you need to know:

  • Only source plants from reputable native plant nurseries that practice ethical propagation
  • Never collect plants from the wild—this could further threaten wild populations
  • Consider this plant only if you’re committed to proper care and conservation
  • Understand that growing information is limited due to its rarity

Growing Conditions and Care

Unfortunately, detailed growing information for this specific variety is quite limited, which reflects just how rare and understudied this plant is. As a Hawaiian native shrub, it likely prefers:

  • Well-draining soil conditions
  • Climate conditions similar to its native Hawaiian habitat
  • Protection from extreme weather conditions

The lack of widely available cultivation information underscores the importance of working with native plant specialists who understand Hawaiian flora if you’re serious about growing this species.

Conservation Considerations

Before deciding to grow Maui tetramolopium, consider supporting conservation efforts for this rare species in other ways:

  • Donate to Hawaiian native plant conservation organizations
  • Choose other native Hawaiian plants that are less threatened
  • Support habitat restoration projects in Hawaii
  • Spread awareness about Hawaiian native plant conservation

Alternative Native Options

If you’re drawn to Hawaiian native plants but want to make a more conservation-friendly choice, consider exploring other native Hawaiian species that are more readily available and better suited to cultivation. Your local native plant society or Hawaiian native plant nursery can recommend beautiful alternatives that won’t put additional pressure on rare species.

The Bottom Line

Maui tetramolopium represents both the beauty and fragility of Hawaii’s native flora. While it’s a remarkable plant worthy of admiration, its rarity means that most gardeners should appreciate it from afar and support conservation efforts rather than attempting to grow it themselves. If you do choose to cultivate this species, make sure you’re working with conservation-minded suppliers and contributing positively to the species’ future rather than putting additional pressure on wild populations.

Sometimes the best way to love a plant is to help protect its wild home and ensure future generations can marvel at its native beauty.

Maui Tetramolopium

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

Tetramolopium Nees - tetramolopium

Species

Tetramolopium arenarium (A. Gray) Hillebr. - Maui tetramolopium

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