Family: Olacaceae

Origin, Description & Uses
Minquartia guianensis (commonly known as black manwood) is a tropical tree native to Central and South Tropical America, where it grows in lowland rainforests. It is a slow-growing, medium to large canopy tree that can reach impressive heights in mature forest systems. The wood is very dense, dark-colored, and highly durable, which has made it valued locally for heavy construction, such as posts, flooring, bridges, and other applications where strength and resistance to decay are important. In its native range, it also contributes to forest structure and provides habitat for wildlife within intact rainforest ecosystems.

Risks & Threats
This species is not known to be naturalized or invasive in Hawaiʻi and currently presents a low risk to natural areas here. It is not widely cultivated locally, and there is no evidence that it spreads aggressively or disrupts native ecosystems. However, as with many dense-wood tropical timber trees, continued monitoring is always beneficial if it is ever introduced more broadly, since non-native trees can sometimes behave differently outside their native ecological balance. For now, Minquartia guianensis is considered low concern for Hawaiʻi’s environments.

High Risk Traits:

• Suited to tropical/subtropical climates
  
• Native to broad Neotropical region
  
• Partial root parasite
  
• Shade tolerant
  
• Tolerates wide range of soils (acid, sandy, flooded)
  
• Viable seed production
  
• Intentionally dispersed by people (timber)
  
• Bird-dispersed seeds survive gut passage

Low Risk Traits:

• No naturalization outside native range
  
• Not weedy
  
• No spines, thorns, or burrs
  
• Not allelopathic or toxic to humans
  
• Forms no dense thickets
  
• No vegetative fragmentation
  
• Low seed production (few fruits)
  
• No persistent seed bank (recalcitrant seeds)
  
• Slow to mature ( >4 years)