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M ajor types of trees in Nahanton Park

M ajor types of trees in Nahanton Park. How to identify and describe specimens. Why do we need to ID the trees?!. To recognize the key organisms at our field site To understand their role in the ecosystem To create a scientific reference book

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M ajor types of trees in Nahanton Park

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  1. Major types of trees in Nahanton Park How to identify and describe specimens

  2. Why do we need to ID the trees?! • To recognize the key organisms at our field site • To understand their role in the ecosystem • To create a scientific reference book • You will make a herbarium - an index of major plant species

  3. Which trees should we know? • Oak • Elm • Maple • Birch • Conifers Many of these types of trees have 100s of individual species…. Let’s review a few general features of each!

  4. Oak Tree ID and Info • Look for lobes • Produce acorns • Hard, gray bark • Deep grooves & ridges in bark

  5. Elm Tree ID and Info • “Toothed” edges – look jagged • Oval shape – comes to a point • Asymmetrical at base

  6. Maple Tree ID and Info • Look for lobes – 5 lobe structure • Check both sides – top side is a darker green than the underside • Veins run through each lobe • Produce “samaras”

  7. Birch Tree ID and Info • Look for the bark! • Papery, peeling bark • Leaves are triangular • Teeth • Distinctive fruit

  8. Conifer Tree ID and Info • Needles instead of broadleaves! • Look for cones • We will work to distinguish pine vs. spruce vs. fir trees

  9. Today’s lab activities: • Identifying the seeds of common plant species – add this table to your tree ID lab in your lab notebook! • Preparing specimens for your herbarium – we will collect more on Friday too

  10. What’s an herbarium?? • A collection of preserved plant species • Leaves are pressed and dried for several days • Mounted (glued) on to a page • Written info: • Plant name • Where/when it was collected • Habitat • Color • Name of collector

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