Iryanthera polyneura

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Common products:
- Sawn timber and veneer for heavy construction and civil engineering structures.
- Round logs for utility poles, pilings, and other outdoor applications.
- Tannin-rich bark as a leather tanning material.

Industrial and craft applications:
- Heavy construction timber for bridges, wharves, and land-based foundations where durability and strength are required.
- Utility poles and outdoor joinery; performance is enhanced by preservative treatment (e.g., creosote or copper-based systems) under applicable wood-preservative standards.
- Boat framing and external joinery where resistance to moisture and mechanical load is needed; performance underpinned by high lignin content and inherent durability.

Food and beverages (non-medicinal):
- No established uses as food or beverage ingredients.

Colorants and tanning:
- Bark used in leather tanning; tannins are primarily condensed (proanthocyanidins) with typical properties of strong binding to proteins and acid buffering, yielding high wet strength and good colorfastness in vegetable-tanned leather. Product classification: vegetable tanning extracts.

Wood and fiber:
- Large, heavy hardwood with high strength, hardness, and dimensional stability. Fiber characteristics include thick-walled fibers and high lignin content, conferring stiffness, abrasion resistance, and decay resistance. Suitability: structural timbers in wet or saline environments.

Fragrance and cosmetics:
- No documented use as a fragrance or cosmetic ingredient.

Properties relevant to use:
- High density and mechanical strength (suited to structural applications).
- High lignin/cellulose ratio promoting durability and stiffness.
- High tannin content in bark enabling vegetable tanning extracts.

Standards and regulation:
- Timber commonly graded and tested to regional standards; large timbers often verified by visual grading rules (e.g., ASTMs D245 and D7342) and mechanical testing (e.g., ASTM D143).
- Wood-preservative treatment compliance with national regulations (e.g., US EPA FIFRA, EU Biocidal Products Regulation) and established performance standards (e.g., AWPA U1 for preservative-treated wood).
- Tanning extracts typically characterized under national pharmacopeial or industrial specifications for vegetable tanning materials and leather industry standards for wet-blue or finished leather.

Sustainability and sourcing:
- Regional distribution in the Amazon basin (Brazil, Peru, Colombia); IUCN Red List assessment is Data Deficient and conservation status is not fully documented.
- Supply is dispersed and volumes are low relative to commercial timbers like Manicaria saccifera; sapwood is susceptible to fungal staining and requires prompt processing.
- Trade requires national timber export documentation and may fall under CITES Appendices for Myristicaceae; due diligence on legal origin and chain-of-custody is advised.
- Selective logging with reduced-impact logging practices recommended to maintain canopy structure and regenerate mature trees within accepted harvest cycles.

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No reference genome is available on NCBI yet. We are constantly monitoring for new data.

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