Palo Santo
Scientific name: Bulnesia sarmientoi
Overview
Palo Santo, often referred to as Argentine Lignum Vitae or Paraguay Lignum Vitae, is one of South America’s most distinctive hardwoods. Native to Argentina, Paraguay, Bolivia, and portions of the Gran Chaco region, the species is renowned for its exceptional density, natural oils, and remarkable durability.
The wood is highly valued for specialty applications requiring wear resistance, dimensional stability, and self-lubricating properties. Its attractive coloration, fine texture, and unique fragrance have also made it popular among woodturners, collectors, and artisans. Due to historical overharvesting and international trade concerns, Palo Santo is one of the more closely regulated hardwoods in the global timber trade.
Quick Facts
- Common Name: Palo Santo
- Scientific Name: Bulnesia sarmientoi
- Region: South American Hardwoods
- Tree Size: 20–50 ft tall, 1–2 ft trunk diameter
- Average Dried Weight: 69 lbs/ft³
- Janka Hardness: 3,590 lbf
- Color: Greenish brown to olive brown, darkening with age
- Grain: Straight to slightly interlocked
- Texture: Fine
Identification Characteristics
Palo Santo is easily recognized by its dense structure, oily feel, and distinctive greenish-brown coloration. Freshly worked wood often releases a pleasant aromatic scent.
Key identification traits include:
- Greenish brown to olive-brown heartwood
- Extremely dense and heavy
- Fine, uniform texture
- Oily feel when freshly machined
- Distinctive aromatic fragrance
- Excellent natural luster
Working Properties
Palo Santo can be challenging to machine due to its density and oily nature, but it produces exceptionally smooth finished surfaces. Sharp tooling and proper surface preparation are recommended when gluing or finishing the wood.
- Difficult to machine because of density
- Natural oils may interfere with gluing
- Turns exceptionally well
- Finishes to a high natural polish
- Excellent wear resistance
- Outstanding dimensional stability
Safety Note
Some individuals may experience skin, eye, or respiratory irritation from Palo Santo dust. Appropriate dust collection and respiratory protection are recommended during woodworking operations.
Common Uses
Palo Santo has historically been used in specialized applications where durability and wear resistance are critical.
- Turned objects
- Tool handles
- Bearings and bushings
- Decorative woodworking
- Fine furniture accents
- Knife scales
- Specialty carvings
- Musical instrument components
- Industrial applications
- Collector wood samples
Sustainability & Notes
Palo Santo is listed under CITES Appendix II, which regulates international trade to help ensure sustainable use of the species. Responsible sourcing is particularly important when purchasing Palo Santo products or lumber.
Its density, natural oils, and durability have earned comparisons to true Lignum Vitae, though the species belongs to a different genus. Today, Palo Santo remains one of South America’s most distinctive and sought-after specialty hardwoods.
Comparative Notes & Related Species
Lignum Vitae – Famous for its extreme density, natural oils, and historical use in bearings and marine applications.
Morado (Bolivian Rosewood) – Another South American specialty hardwood valued for its beauty, density, and use in decorative woodworking projects.
Snakewood – A prized collector species valued for density, rarity, and unique appearance.
Related Guides
Understanding CITES & Protected Species – Learn how international trade regulations affect species such as Palo Santo and why certain woods receive protected status.
Why Some Species Become Restricted – Explore the factors that lead to harvesting restrictions, trade controls, and conservation efforts for valuable hardwoods.
Machining Dense Tropical Hardwoods – Discover best practices for working with exceptionally dense species that can challenge tools and woodworking equipment.
Compare Wood Properties
See how this species ranks in density and hardness using our Wood Density & Janka Hardness Chart. You can also explore Hardest Woods, Softest Woods, and Most Dense Woods for quick comparisons.
Collector Notes
Palo Santo is a highly desirable collector species because it combines rarity, density, fragrance, and historical significance. Samples often display beautiful olive and greenish-brown coloration along with a natural luster that develops with polishing. Many collectors seek Palo Santo alongside Lignum Vitae, Verawood, Snakewood, and other specialty hardwoods known for exceptional physical properties.
Share Your Photos of This Species
Do you have lumber, wood samples, tree photographs, woodworking projects, furniture, carvings, turnings, musical instruments, or other items made from this species?
Exotic Woods of the World welcomes photographs from woodworkers, collectors, sawyers, researchers, and wood enthusiasts around the world. Selected submissions may be featured on this page and throughout our website to help document and showcase real-world examples of this species.
When submitting photos, please include the common name, scientific name (if known), a brief description, and any information you would like us to share with the image.
Wood Sample Collection
This species is part of an ongoing effort to document and preserve wood samples from around the world.
Learn more about contributing to the collection:
Resources
Authoritative botanical and forestry references used in compiling information about this species include:
• USDA Forest Service – Wood Handbook: Wood as an Engineering Material
https://www.fpl.fs.usda.gov/products/publications/
• The Wood Database – Global reference for wood identification, physical properties, and woodworking characteristics
https://www.wood-database.com/
• Royal Botanic Gardens, Kew – Plants of the World Online – Botanical taxonomy and species distribution database
https://powo.science.kew.org/
• International Union for Conservation of Nature (IUCN Red List) – Global conservation status assessments
https://www.iucnredlist.org/
• Convention on International Trade in Endangered Species (CITES) – International trade regulations for protected plant species
https://cites.org/
Additional forestry publications, academic research papers, and regional timber studies may also be referenced where available.
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Availability & Where to Buy
Exotic hardwood availability can vary significantly depending on region, sustainability regulations, and supplier inventory.
As this archive grows, recommended suppliers and specialty wood retailers will be listed here to help woodworkers locate responsibly sourced material.
Lumber Suppliers:
Availability varies — see the Where to Buy Exotic Woods page for current sources.
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