- leucodermis Antoine = Pinus heldreichii Erhardt, Walter - 'List of Conifer Names' (2005); ISBN: 3800148813 This photo was taken at Bickelhaupt Arboretum located in Clinton, IA in their 'Heartland Collection of Garden Conifers' during the fall of 2003. At that time, the plant was labled: Pinus leucodermis 'Emerald Arrow'.