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Section 5: Trees

Acer macrophyllum

Big Leaf Maple

Photos: ©2008 Keir Morse; ©2003 Barry Breckling; 2017 Wendy St. John

Acer negundo



Box Elder

    • Tree, native
  • Family: Sapindaceae

    • Bears winged fruit
  • Leaf consists of 3 leaflets, bottom of leaf is “felty”
  • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=11747

ur; ©2004 Julie Kierstead Nelson; ©2005 JE and Bonny McClellan, California Academy of Sciences

Aesculus californica



California Buckeye

    • Tree, Native
  • Family: Sapindaceae
  • Palmate leaf with 5-7 leaflets

    • Bears large glossy seed
  • Panicle-like inflorescence
  • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=12026

Photos: ©2001 Julie Kierstead Nelson; ©1999 Joseph Dougherty; ©2003 George W. Hartwell; © 2017 Wendy St. John

Ailanthus altissima



Tree of Heaven

    • Tree, Exotic
  • Family: Simaroubaceae
  • Leaves are ill-smelling when

crushed

    • Pinnate leaf with terminal

single leaf

Alnus rubra




Oregon Alder; Red Alder

      • Tree or shrub, Native

        • Family: Betulaceae

          • Smooth bark
  • https://ucjeps.berkeley.edu/e flora/eflora_display.php?tid=1

2723

Arbutus menziesii

Pacific Madrone

    • Tree, Native
  • Family: Ericaceae
  • https://ucjeps.berkeley.edu/eflora/ eflora_display.php?tid=13872

Fraxinus latifolia

Oregon Ash

    • Tree, Native
  • Family: Oleaceae

•

Juglans californica hindsii

Northern California Black Walnut

    • Tree, Native
  • Family: Juglandaceae
  • https://ucjeps.berkeley.edu/eflo ra/eflora_display.php?tid=29566

Liquidambar stryaciflua

Sweetgum

    • Tree, Exotic
  • Family: Hamemelidaceae

    • Spiky fruits
  • Looks kind of like a maple
  • Not listed in online Jepson
  • http://plants.usda.gov/java/nam eSearch?mode=Scientific+Name &keywordquery=Liquidambar+st

yraciflua

Quercus agrifolia




California Live oak; Coast Live Oak

Quercus chrysolepis

Canyon Live Oak

    • Tree, Native
  • Family: Fagaceae
  • https://ucjeps.berkeley.edu/eflor a/eflora_display.php?tid=40565

Quercus lobata

California White Oak; Valley Oak

    • Tree, Native
  • Family: Fagaceae
  • 6-10 Margined lobes on

each leaf

Salix babylonica


Weeping Willow

Tree, Exotic

Salix exigua


Narrow Leaf Willow

    • Tree or shrub, Native

      • Family: Salicaceae
  • Short, slender and

serrate leaves

    • Stem twigs yellow to

red-brown

Photos: ©1998 Charles Webber, California Academy of Sciences;

©University of California Museum of Paleontology

Salix lasiolepis


Arroyo Willow

Salix laevigata

Red Willow

Salix lasiandra


Shining Willow

    • Formerly Salix lucida

      • Shrub to small tree,

Native

Sambucus nigra caerulea

Blue Elderberry

    • Deciduous shrub or small tree, Native

      • Family: Adoxaceae
  • https://ucjeps.berkeley.e du/eflora/eflora_display.

php?tid=80587

Sequoia sempervirens


Coast Redwood

Umbellularia californica


California Bay Laurel

      • Tree, Native
  • Family: Lauraceae
  • Fragrant, narrowly ovate, oblong leaves
  • Produces olive like fruits