Family: Malvaceae

Sidastrum micranthum (dainty sandmallow) is a species of shrub native to the New World Tropics. In the North-eastern region of Brazil, the leaves of this species are traditionally used to treat coughs, bronchitis and asthma. It is reported to be naturalized on Kauai, Oʻahu, Molokai, Lanai, Maui, and Hawaiʻi. This plant may compete with desirable forage grasses but was first observed in 1900 and is not currently being aggressively targeted or controlled.

High Risk Traits:

• Thrives and spreads in regions with tropical climates
  
• Naturalized on Kauai, Oahu, Molokai, Lanai. Maui and Hawaii (Hawaiian Islands) and elsewhere in the tropics
  
• A common weed of pastures, reported to compete with desirable forage plants and to reduce grazing capacity
  
• Prevalence in pastures suggests that plants may be unpalatable relative to other pasture plants
  
• Host of crop pests and pathogens
  
• Tolerates shade
  
• Reproduces by seeds
  
• Seeds dispersed autochorously (by dehiscent capsules), along heavily trafficked corridors, and as a seed contaminant
  
• Gaps in biological and ecological information may reduce accuracy of risk prediction

Low Risk Traits:

• Unarmed (no spines, thorns, or burrs)
  
• Non-toxic
  
• Herbicides may provide effective control