Eucryphia is a small genus of trees and large shrubs native to the south temperate regions of South America and coastal eastern Australia, predominantly Tasmania. Some common names include leatherwood in Australia, and Ulmo, Nirre or Guindo santo in Argentina and Chile. Sometimes placed in a family of their own, the Eucryphiaceae, they are placed by more recent classifications in the Cunoniaceae. There are seven species, two in South America and five in Australia, and several named hybrids.
Researchers in Chile built a large, high-quality image library of 16 pollen types from the Biobío Region, complete with precise shape outlines verified by a pollen expert. This dataset is designed to train AI systems that can automatically identify pollen — a task that matters for tracking plant diversity, allergies, and honey authenticity.
