North America Native Plant

Canarium Hirsutum

Botanical name: Canarium hirsutum

USDA symbol: CAHIS2

Life cycle: perennial

Habit: tree

Native status: Native to Pacific Basin excluding Hawaii  

Canarium hirsutum: A Rare Pacific Island Native Tree Worth Knowing If you’re lucky enough to garden in the tropical Pacific, you might want to get acquainted with Canarium hirsutum – a fascinating native tree that’s as mysterious as it is magnificent. While this perennial giant doesn’t have a widely recognized ...

Canarium hirsutum: A Rare Pacific Island Native Tree Worth Knowing

If you’re lucky enough to garden in the tropical Pacific, you might want to get acquainted with Canarium hirsutum – a fascinating native tree that’s as mysterious as it is magnificent. While this perennial giant doesn’t have a widely recognized common name (which tells you something about how uncommon it is!), it’s definitely worth considering if you’re creating an authentic Pacific island landscape.

Where Does Canarium hirsutum Call Home?

This impressive tree is native to the Pacific Basin, though you won’t find it in Hawaii. Currently documented growing in Guam and Palau, Canarium hirsutum represents the unique flora of these tropical island ecosystems. It’s a true island endemic that has adapted specifically to Pacific island conditions.

What Makes This Tree Special?

Canarium hirsutum is what botanists call a proper tree – meaning it’s a substantial, woody perennial that grows from a single trunk and typically reaches impressive heights of 13-16 feet or more. Under the right conditions, it can become a real canopy giant, though environmental factors might sometimes keep it shorter or encourage multi-stemmed growth.

The hirsutum part of its name hints at hairiness, suggesting this tree likely has fuzzy or hairy leaves or stems – a common adaptation for tropical plants dealing with humidity and insects.

Should You Plant Canarium hirsutum?

Here’s where things get interesting (and a bit challenging). If you’re gardening in Guam, Palau, or similar Pacific island environments, this tree could be an excellent choice for:

  • Supporting native ecosystem restoration
  • Creating authentic regional landscapes
  • Providing substantial shade and canopy coverage
  • Adding a rare, conversation-worthy specimen to botanical collections

However, there are some important considerations. Since detailed information about this species is limited, you’ll want to source it responsibly and work with local botanical experts or native plant societies who understand its specific needs and conservation status.

Growing Conditions and Care

As a Pacific island native, Canarium hirsutum will thrive in:

  • Climate: USDA zones 10-12 (tropical conditions only)
  • Space requirements: Large gardens or properties with room for a substantial canopy tree
  • Sunlight: Likely prefers full sun to partial shade
  • Soil: Well-draining tropical soils
  • Water: Regular moisture, especially during establishment

Given its tree-sized ambitions, make sure you have adequate space for both its mature height and spread. This isn’t a species for small gardens or container growing!

The Bottom Line

Canarium hirsutum represents the kind of unique, regionally important native plant that makes Pacific island gardening so special. While it’s not going to be available at your average nursery, it’s exactly the kind of species that dedicated native plant enthusiasts and restoration practitioners should know about.

If you’re in its native range and interested in growing truly local plants, seek out local botanical experts, native plant societies, or conservation organizations who might have access to responsibly sourced material. Just remember – when dealing with potentially rare native species, always prioritize conservation and responsible sourcing over personal garden goals.

Sometimes the most rewarding plants are the ones that connect us most deeply to the unique character of our local ecosystems, even if they’re not the easiest to find or grow!

Canarium Hirsutum

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

Burseraceae Kunth - Frankincense family

Genus

Canarium L. - olive

Species

Canarium hirsutum Willd. - mesecheues

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