Rainbow Poplar (Tulip Poplar)
Liriodendron tulipifera • Hardwood
Grain Pattern
Straight-grained with a fine, even texture. The sample shows faint horizontal lathe marks from turning across a diffuse-porous structure.
Color Description
Creamy white to yellowish-brown heartwood featuring dramatic streaks of mineral staining in shades of grey, olive green, and dark purple/black. Sapwood is pale white and usually clearly demarcated.
Hardness Rating
540 lbf (Soft)
Durability Rating
Moderately Durable to Non-durable; heartwood has modest decay resistance, but it is susceptible to insect attack if left untreated.
Common Uses
Turning (bowls), furniture frames, cabinetry interiors, plywood, light construction, and musical instrument components (organ pipes).
Geographic Origin
Eastern United States and parts of Southern Ontario, Canada.
Market Value & Sustainability
Estimated Market Value
Approximately $2.50 to $5.00 per board foot for 'Rainbow' or mineral-stained character grade.
Wood Age Estimate
Relatively recent (5-15 years); the lack of significant yellowing of the sapwood and the crispness of the mineral streaks suggest a modern turned piece.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered highly sustainable.
Workability
Very easy to work with both hand and machine tools. It glues and finishes well, though it can be prone to 'fuzzy' grain if tools are not exceptionally sharp.
Notable Features
Distinctive mineral staining ('Rainbow') caused by the tree's absorption of minerals from the soil. It is one of the tallest and straightest hardwoods in North America.
Finish Recommendations
A clear film finish like lacquer or polyurethane is recommended to preserve the mineral colors; oil finishes may darken the wood significantly over time.
Identification Confidence
High; the specific combination of light creamy background wood with the muted olive and grey mineral streaks is a signature characteristic of Liriodendron tulipifera.