Oklahoma plum: toothed leaves, clustered white spring flowers and paired round fruit. Illustration from Britton & Brown, An Illustrated Flora of the Northern United States
Fragrant ash in full bloom along a Grand Canyon trail, Arizona. Photo: Matt Lavin, Wikimedia Commons (CC BY-SA 2.0) Fraxinus cuspidata, the Fragrant Ash, is
Juniperus coahuilensis, the Coahuila Juniper, is a shrubby, multi-trunked evergreen tree of the Chihuahuan and Sonoran desert borderlands, found in the United States only in
⚠️ An extremely rare, single-location tree. Robust Oak (Quercus robusta) is known only from the Chisos Mountains of Big Bend National Park, Texas. No photographs
Peachleaf Willow growing along a riparian corridor in Montana. Photo: Matt Lavin, Wikimedia Commons (CC BY-SA 2.0) Salix amygdaloides, commonly known as Peachleaf Willow or
⚠️ One of the rarest trees in North America. Lateleaf Oak (Quercus tardifolia) was believed extinct for years before a single surviving wild tree was
Dwarf Chinkapin Oak foliage growing on serpentine barrens, Nottingham County Park, Pennsylvania. Photo: Choess, Wikimedia Commons (CC BY-SA 3.0) Quercus prinoides, commonly known as Dwarf
Coahuila Scrub Oak branch showing its small, leathery, wavy-edged leaves. Photo: Claudio Cantú Muñiz, Wikimedia Commons (CC BY 4.0) Quercus intricata, commonly known as Coahuila
Toumey Oak growing as a dense, multi-stemmed evergreen thicket on a rocky slope, Chiricahua National Monument, Arizona. Photo: Wikimedia Commons (CC BY-SA 4.0) Quercus toumeyi,
Mature Netleaf Oak with its characteristic dense, rounded evergreen crown. Photo: Wikimedia Commons (CC BY-SA 4.0) Quercus rugosa, known in the United States as Netleaf
View More