Osage Orange (Alternative: Black Locust)
Maclura pomifera · Hardwood
- Type
- Hardwood
- Origin
- South-Central United States (originally restricted to a small region in Arkansas, Oklahoma, and Texas), but now widely naturalized throughout North America.
- Hardness
- 2760 lbf (Extremely Hard)
- Durability
- Very Durable. Exceptional natural resistance to rot, decay, and insect attacks, making it one of the most durable woods in North America.
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Grain Pattern
Irregular to straight grain with a coarse, uneven texture. The growth rings are distinct with ring-porous or semi-ring-porous structure.
Color & Appearance
Freshly cut heartwood is a striking bright golden yellow to bright orange-yellow. Upon exposure to UV light and air, it rapidly oxidizes and darkens to a rich amber, medium brown, or dark patina over time. Sapwood is narrow and pale yellow.
Hardness (Janka)
2760 lbf (Extremely Hard)
Durability & Decay Resistance
Very Durable. Exceptional natural resistance to rot, decay, and insect attacks, making it one of the most durable woods in North America.
Value & Sustainability
- Estimated Market Value
- Moderately high for specialized lumber or turning blanks, typically ranging from $5 to $10+ per board foot depending on dimensions and quality.
- Wood Age Estimate
- Freshly cut (less than a few weeks old based on vibrant yellow color and surface sawdust).
- Sustainability Status
- Not listed on the CITES appendices or the IUCN Red List. It is abundant and considered of least concern.
Common Uses
Fence posts, archery bows, turnery, accent furniture, mallet heads, marine uses, and primitive tool handles.
Geographic Origin
South-Central United States (originally restricted to a small region in Arkansas, Oklahoma, and Texas), but now widely naturalized throughout North America.
Workability
Very difficult to work with both hand and machine tools due to its extreme density and hardness. It severely dulls cutting edges and can be prone to burning during sawing or routing. Pre-boring is required for nailing and screwing.
Finish Recommendations
Takes a fine natural polish well due to its density. Clear finishes like oils, shellac, or polyurethane work best to highlight the rich golden/amber color, though UV-inhibiting finishes can help slow down the natural darkening process.
Notable Features
Contains high natural extractives (such as morin) which give it the vibrant yellow color and high decay resistance. It is exceptionally heavy, stable once dry, and traditionally prized by Native Americans for making exceptionally strong hunting bows.
