North America Native Plant

Hairy Melicope

Botanical name: Melicope puberula

USDA symbol: MEPU4

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Synonyms: Pelea puberula H. St. John (PEPU9)   

Hairy Melicope: A Rare Hawaiian Native Worth Protecting Meet the hairy melicope (Melicope puberula), a charming yet critically endangered native Hawaiian shrub that deserves our attention and protection. This little-known plant represents both the unique beauty of Hawaii’s native flora and the urgent conservation challenges facing island ecosystems. What Makes ...

Rare plant alert!

Region: United States

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) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Hairy Melicope: A Rare Hawaiian Native Worth Protecting

Meet the hairy melicope (Melicope puberula), a charming yet critically endangered native Hawaiian shrub that deserves our attention and protection. This little-known plant represents both the unique beauty of Hawaii’s native flora and the urgent conservation challenges facing island ecosystems.

What Makes Hairy Melicope Special

The hairy melicope gets its common name from the soft, fuzzy undersides of its glossy green leaves. This perennial shrub typically grows as a multi-stemmed woody plant, usually reaching heights of 13 to 16 feet, though it can vary depending on environmental conditions. Its small, cream-colored flowers appear in delicate clusters, creating a subtle but lovely display against the backdrop of its attractive foliage.

A True Hawaiian Endemic

This remarkable shrub is found exclusively in Hawaii, making it a true endemic species. Hairy melicope grows naturally on the older volcanic soils of the Hawaiian Islands, where it has evolved to thrive in the unique conditions of this Pacific paradise.

Conservation Alert: Handle with Care

Important: Hairy melicope has a Global Conservation Status of S1, meaning it’s critically imperiled with typically five or fewer occurrences remaining in the wild. In the United States, it’s classified as Endangered. If you’re considering adding this plant to your garden, please ensure you source it only from reputable native plant nurseries that propagate from legally and ethically obtained material—never collect from wild populations.

Garden Role and Landscape Design

Due to its rarity, hairy melicope is best suited for:

  • Native Hawaiian conservation gardens
  • Specialized botanical collections
  • Educational landscapes focusing on endangered species
  • Private gardens of serious native plant enthusiasts

This shrub works beautifully as a specimen plant or as part of a native Hawaiian plant community, where it can be paired with other endemic species to create an authentic island ecosystem.

Growing Conditions and Care

Hairy melicope prefers well-draining soils and can adapt to various light conditions from partial shade to full sun. As a facultative upland species, it usually grows in non-wetland areas but can tolerate some moisture. The plant thrives in USDA hardiness zones 10-11, requiring tropical to subtropical conditions year-round.

Growing tips:

  • Provide well-draining, volcanic-type soil when possible
  • Maintain moderate moisture levels—not too wet, not too dry
  • Protect from strong winds, especially when young
  • Consider companion planting with other native Hawaiian species

Supporting Pollinators and Wildlife

While specific research on hairy melicope’s wildlife benefits is limited, native Hawaiian plants like this one typically support local pollinators and insects that have co-evolved with them over thousands of years. By growing this species, you’re potentially providing habitat and food sources for Hawaii’s native fauna.

The Bottom Line

Hairy melicope represents both an opportunity and a responsibility. If you live in an appropriate climate and can source this plant responsibly, growing it contributes to conservation efforts for this critically endangered species. However, this isn’t a plant for casual gardeners—it requires commitment, appropriate growing conditions, and most importantly, ethical sourcing.

Consider reaching out to local botanical gardens, native plant societies, or conservation organizations in Hawaii to learn more about legitimate conservation efforts and how you might contribute to protecting this remarkable endemic species for future generations.

Hairy Melicope

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

Sapindales

Family

Rutaceae Juss. - Rue family

Genus

Melicope (J.R. Forst. & G. Forst.) T.G. Hartley & B.C. Stone - melicope

Species

Melicope puberula (H. St. John) T.G. Hartley & B.C. Stone - hairy melicope

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