Juglans olanchana mountainous regions of Argentina may result from confusion with the cedro negro (Spanish for "Black Cedar" due to its close appearance to West Indian cedar) or nogal (Spanish for "walnut") ("J. neotropica"). "Juglans olanchana" has a cylindrical, straight shaft that is free of branches for 5–15 m. The moderately heavy (420–450 kg/m) and moderately durable heartwood has a dark coffee color, is easy to work, and takes an excellent finish. It is used for light construction, cabinetmaking, parquet floors, luxurious furniture, turnery, musical instruments, and veneer. The nuts are edible. The husk is used to dye leather. Juglans olanchana Juglans
Juglans hindsii ("Quercus" spp.) and Fremont cottonwood ("Populus fremontii") trees. "Juglans hindsii" has only one confirmed native stand remaining. It is listed as Seriously Endangered on the California Native Plant Society Rare Plant Inventory. The IUCN classification is a Vulnerable species. It is threatened by hybridization with orchard trees, urbanization, and habitat conversion to agriculture. "Juglans hindsii" is a medium-sized tree of short bulky proportions. It grows up to tall, has a single erect trunk, commonly without branches for , and a crown that can be wider than the tree is tall. Trunks commonly reach in diameter near the base of the