Mr. Kolodji Environmental Studies

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Presentation transcript:

Mr. Kolodji Environmental Studies Tree Identification Mr. Kolodji Environmental Studies

Dendrology ‘Dendro-’ from the Greek word meaning tree ‘-ology’ meaning the study of Dendrology is the study of trees and includes taxonomy, identification, silivical characteristics, ranges, morphology, and ecology

What makes a tree a tree? Heights at least 4.5 meters (about 15 feet) Single dominant woody stem (trunk or bole) Capable of diameter growth Perennial plant (present at all seasons of the year)

What makes a shrub a shrub? Heights under 4.5 meters (less than 15 feet) Multi-stemmed Capable of diameter growth Perennial plant

Tree Identification By observing leaves

How many different trees or leaves can you identify?

Does it help to look through many leaves and find one that matches or is there a better way?

Conifers vs. Deciduous Which is Which?

Exceptions Larch trees have cones and needles, but lose their leaves each year. Yew trees have needle shaped leaves and are evergreen but have berries not cones. Holly trees have broad flat leaves and it is evergreen.

Conifer leaves Scale like Needle like

Conifer needles Clusters Singles

Deciduous examples Red oak Elm Honey locust Red maple White birch beech Crimson king Black locust

Leaf Arrangement alternate opposite whorl

Leaf Type Simple vs. Compound Sweet gum and ash

Simple or Compound?

What is the leaf type?

Leaf Edge Lobed , smooth, toothed?

Leaf Texture

Leaf Shape

Bark Color Texture Furrows Age Thorns

Twig clues Leaf scars aka buds are the places where the leaves used to be attached Size color and shape of buds also useful to ID trees

Flower clues Shape Color Texture Size

Fruits & Seeds

Cones

Overall shape

Scientific names Two part name (binomial nomenclature) Made up of the genus and the species names Written in italics because it’s Latin. Example: Pinus strobus