• Arisaema dracontium (Green Dragon), leaves, upper surface
  • Pinus aristata Engelm. (Rocky Mountain bristlecone pine), branches
  • Quercus rubra (northern red oak), emerging flowers and leaves detail
  • Opuntia fragilis (Nutt.) Haw. (little prickly-pear),  flower, stamens
  • Elizabeth "Sody" Zimmerman seated in grass with other people
  • Fraxinus nigra Marsh. (black ash), leaves, fall color
  • Acer campestre 'BAllee' (JADE PATINA™ FIRST EDITION® series Hedge Maple), leaf, new
  • Malus 'Pumpkin Pie' (Pumpkin Pie Crabapple), bark, twig
  • Taxus cuspidata 'Klehm's Spreader' (Klehm's Spreader Japanese Yew), leaf, summer
  • Sporobolus heterolepis (A. Gray) A. Gray (prairie dropseed), growth habit

Welcome to ACORN and the collections of The Sterling Morton Library

Explore the collections of The Morton Arboretum through ACORN! Discover more than 40,000 photographs, videos, audio files, publications, artwork, rare books, maps, and other archival materials from the Suzette Morton Davidson Special Collections of the Sterling Morton Library. This searchable database provides access to our digital collections and we're continually expanding it to include more of the Arboretum’s rich resources.