White alder forming a classic streamside canopy along Battle Creek, Tehama County, California. Photo: Richjordana, via Wikimedia Commons (Public domain) Alnus rhombifolia, commonly known as
A roughly 200-year-old Southern California black walnut spreading over a quarter acre at Rancho Camulos, Ventura County. Photo: Joe Gier, via Wikimedia Commons (CC BY-SA
Catalina ironwood growing wild in a canyon on Santa Catalina Island. Photo: Sherwin John Carlquist, via Wikimedia Commons (CC BY 4.0) Lyonothamnus floribundus, the Catalina
California wax myrtle forming a dense evergreen hedge on a Sonoma County coastal bluff. Photo: Wikimedia Commons (CC BY-SA 4.0) Morella californica (syn. Myrica californica),
Arroyo willow branch with catkins and emerging leaves at Mitchell Canyon, California. Photo: John Rusk, via Wikimedia Commons (CC BY 2.0) Salix lasiolepis, the arroyo
A dense, rounded Scrub oak shrub, a typical sight across California chaparral. Photo: Kenraiz / Wikimedia Commons (CC BY-SA 4.0) Quercus berberidifolia, commonly called Scrub
Mossy, multi-trunked Interior live oaks forming a dense evergreen canopy. Photo: Bennetrs / Wikimedia Commons (CC BY-SA 4.0) Quercus wislizeni, the Interior Live Oak, is
A classic open-grown Engelmann oak, wide crown shading a grassy savanna. Photo: Wikimedia Commons (public domain) Quercus engelmannii, commonly called Engelmann Oak, Mesa Oak, or
California sagebrush’s soft, gray-green form in Marin County. Photo: Franco Folini / Wikimedia Commons (CC BY-SA 2.0) Artemisia californica, commonly called California Sagebrush or coastal
A mature, tree-form California juniper with gnarled trunks on Mount Diablo. Photo: Wikimedia Commons (CC BY-SA 3.0) Juniperus californica, the California Juniper, is a tough,
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