Family: Fabaceae

Origin, Description & Uses
Desmodium nicaraguense, commonly known as shrubby desmodium, is a perennial, woody legume native to parts of Central America, including Nicaragua and neighboring regions. This small shrub typically produces trifoliate (three-part) leaves and clusters of pink to purplish pea-like flowers that attract pollinators. Like many members of the legume family, it can help improve soil fertility by fixing nitrogen. Shrubby desmodium is occasionally grown as a minor ornamental or used in agroforestry and soil improvement systems, where it may serve as a cover crop, erosion control plant, or forage species in tropical and subtropical climates.

Risks & Threats
Shrubby desmodium is considered Low Risk for Hawaiʻi. It is not known to be invasive in the islands and has not demonstrated aggressive spread or significant impacts to native ecosystems. While legumes can sometimes naturalize in suitable climates, there is no evidence that this species forms dense stands, displaces native vegetation, or alters habitats in Hawaiʻi. As with any introduced plant, responsible planting and monitoring are encouraged, but current information suggests that Desmodium nicaraguense poses minimal threat to the environment.

High Risk Traits:

• Weedy genus: Desmodium includes serious weed species.
  
• Naturalizing: Showing signs of naturalizing in American Samoa.
  
• Competitive: Tolerates heavy competition from grasses.
  
• Thicket-forming: Grows abundantly in thickets.
  
• Nitrogen-fixing: Can alter nutrient cycles and thrive in poor soils.
  
• Intentional spread: Easily established and dispersed by people.
  
• Resprouts: Recovers quickly after grazing.
  
• Soil tolerance: Tolerates acid soils.

Low Risk Traits:

• Not a reported weed: No evidence of being an agricultural or environmental weed.
  
• Palatable: Valuable forage; non-toxic to animals.
  
• No defenses: Lacks spines, thorns, or burrs.
  
• Non-parasitic: Not a parasite.
  
• No allelopathy: No evidence of allelopathic properties.
  
• Growth habit: Shrub; not climbing or smothering.
  
• No vegetative spread: No evidence of reproduction by fragmentation.
  
• Limited dispersal: Pods disperse by gravity; not wind, water, or externally by animals.
  
• No seed bank: Seeds are recalcitrant and unlikely to persist long-term.