Poplar (Rainbow/Yellow Poplar)
Liriodendron tulipifera • Hardwood
Grain Pattern
Straight-grained with a uniform, medium to fine texture. Exhibits some closed-grain cathedral patterns near the base and a small knot. Flat-sawn orientation.
Color Description
Sapwood is creamy white to pale yellow. The heartwood shown exhibits characteristic olive green to brownish-grey mineral streaks (Rainbow Poplar). It tends to darken or brown significantly with UV exposure over time.
Hardness Rating
540 lbf (Soft Hardwood)
Durability Rating
Non-durable to Slightly Durable. Poor resistance to decay and insects; intended for interior use only.
Common Uses
Interior trim, cabinetry (painted), furniture frames, utility wood, secondary wood for drawers, and turning items like bowls.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$2.50 to $4.50 per board foot depending on region and width.
Wood Age Estimate
Modern lumbers (less than 5-10 years) based on crisp edges, lack of heavy oxidation/patina, and modern milling marks.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List. Categorized as very sustainable and widely available with FSC certification commonly available.
Workability
Excellent workability with both hand and machine tools. It planes smoothly, glues well, and takes paint exceptionally well. It can be prone to fuzzing if tools are not sharp and can be difficult to stain evenly without a pre-conditioner.
Notable Features
Faint spicy scent when worked. Known for diverse mineral staining (greens, purples, blacks). Lightweight and dimensionally stable once dried.
Finish Recommendations
Paint is the most common finish. If leaving natural, use a UV-inhibiting clear coat or lacquer to slow the transition from green to brown. Use a sanding sealer before staining to prevent blotchiness.
Identification Confidence
High. The distinct olive-green mineral streak combined with the pale cream sapwood and tight, fine grain structure is diagnostic for Liriodendron tulipifera (Yellow Poplar).