Ginkgo Family Ginkgoaceae Genus Ginkgo Species biloba Scientific name Ginkgo biloba MAPLES Family Aceraceae Genus Acer MAPLES Seeds Ex Red maple Acer rubrum Most maples have simple palmate leaves ID: 359855
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Slide1
Types of LeavesSlide2
Ginkgo
Family:
Ginkgoaceae
Genus: GinkgoSpecies: bilobaScientific name: Ginkgo bilobaSlide3
MAPLES
Family:
Aceraceae
Genus: AcerSlide4
MAPLES
Seeds!!Slide5
Ex: Red maple:
Acer
rubrum
Most maples have simple palmate leavesSlide6
Some maples have compound leaves
Box elder maple:
Acer
negundoPaper bark mapleAcer griseum
Papery bark, peels, looks like cinnamonSlide7
MAPLES
For species of maples and scientific names, see the tree ID list.
To identify specific species, use field guides, the internet, or talk to Mrs. McCarrey about using her book to compare leaves.Slide8
SYCAMORES (aka plane trees)
Family:
Platanaceae
Genus: PlatanusCan be confused with maples; the difference is the sycamores don’t have the classic maple seeds and sycamores have very distinctive bark that looks like dried and cracked mud (right) or sometimes sloughs off (below)Slide9
OAKS
Family:
Fagaceae
Genus: QuercusSlide10
OAKS
Seeds = acornsSlide11
BEECHES
Family:
Fagaceae
Genus: FagusTypically have a smooth gray bark (like an elephant, but smoother!)Classic beech leaves have
wide-spread veins in a pinnate leaf and are pubescent on margins and bottom of leaf.Slide12
WILLOWS
Family:
Salicaceae
Genus: SalixUsually have narrow, pointed leaves (except for pussy willows)Seeds: catkins (in spring)Some “weep” (but not all – this is true of weeping willows and corkscrew willows”
Above and right: catkins
Left and below: leaves and tree of weeping willowSlide13
Cottonwoods & Poplars
Family:
Salicaceae
Genus: PopulusTall, grow by water, cottonwood seeds in springDeeply furrowed barkSlide14
ASPEN
Family:
Salicaceae
Genus: PopulusSpecies: Populus tremuloidesClassic white bark with black lines on it; live in clumps (clonal)
Leaves: flat, soft teeth, pointedSlide15
Birches
Family:
Betulaceae
(same family as alders and hornbeams)Genus: Betula (alder genus: alnus, hornbeam genus: Carpinus)Serrated leavesUsually have white bark (paper birch bark peels like paper,
weeping birches have deeply serrated teeth and white bark with black lines)Slide16
Pine Trees
Family:
Pinaceae
Genus: PinusNeedles usually come in fascicles/bundles of 2, 3, or 5 (rarely as 1) and are usually 2” or longerPineconesNeedles in 2s: Austrian, Bosnian Red Cone, 2-needle pinyon, Scots/ScotchNeedles in 3s: Jeffrey and Ponderosa
Needles in 5s: Bristlecones, LimberSlide17
Spruces
Family:
Pinaceae
Genus: PiceaNeedles are shorter than pine needles; come in bundles/fascicles of 1Pokey/sharp needles (typically stiffer than pine needles)Blue spruce: Picea pungensSlide18
Cedars
Family:
Pinaceae
Genus:
CedrusMore elegant appearing than pines/spruces; boughs often droop with ageNeedles are whorled in clusters of at least 20Slide19
Firs and Douglas Firs
Family:
Pinace
Genus for firs: AbiesGenus for Douglas-fir: PseudotsugaFur needles are soft and not sharp; less stiff than spruces “firs are friendly!”Fir cones are papery (douglas fir cones have little “tails” on the paper)
Left: white fir cone
Right:
D
ouglas fir coneSlide20
Horsechestnuts/Buckeyes
Family:
Sapindaceae
Genus: AesculusCompound palmate leaves with either 5 or 7 leaflets; seeds are spikey ballsGood shade treesSlide21
Elms
Family:
Ulmaceae
Genus: UlmusThese have prolific papery seeds (seeds almost look like petals)Many species are messy (lots of sap, pollen, and seeds)Serrated pinnate leaves with widely spread veins; leaf is asymmetrical where it comes off of the petioleSlide22
Linden
Family:
Tiliaceae
Genus: TiliaKey features: light serration on leaves, leaves usually asymmetrical (slightly heart shaped) where blade comes off of petiole, leaves have a petal which accompanies them and dries out/turns yellow/white as summer progressesSlide23
Walnut trees
Family:
Juglandaceae
Genus: JuglansIn Utah there are two main types: English walnut (Juglans regia)
Black Walnut (Juglans nigra)Compound leaves
Walnut seeds in spring/summer
Slide24
Fruit Trees
Family:
Rosaceae
Same family as rosebushesMany different cultivars or breeds (often people label cultivars or specific types by adding a word to the end of the scientific name, e.g. Tilia cordata greenspire
, but you don’t have to identify this cultivar)Slide25
Hawthorn
Family:
Rosaceae
Genus: CrataegusSerrated leaves of varying shapes, small round berries that birds eatSlide26
Pear
Family:
Rosaceae
Genus: PyrusCommon pears are European pear Pyrus communis (has fruit) and Bradford pear (tiny non-edible fruits)Slide27
Apple
Family:
Rosaceae
Genus: MalusIncludes crabapples (right) and apples (below)Slide28
Plum, cherry, apricot, peach
Family:
Rosaceae
Genus: PrunusSlide29
Rowan
Family:
Rosaceae
Genus: RowanIn legend, rowan wood is used to ward off witches (see The Last Apprentice series).Slide30
Image sources
BYU TREE TOUR website
http://treetour.byu.edu/map.aspx
Wikimedia commonsGoogle images when first two sources were inadequate to portray key characteristics