Challenge 1 - ID a Tree

Trees are all around us, on our streets, in our parks, and, of course, in our forests. They are living features that are intrinsically valuable to our community and local landscape.

Our first Ontario Envirothon challenge of the year is focused on tree identification, where registered teams (or individually registered participants) are tasked with observing and identifying 15 trees, or 5 trees if you are participating as a registered individual. For teams, any member of the team can post these observations. For your observations to count towards the challenge, you must list at least 3 identifying features in the “notes” field of each observation to justify your identification.

Here are some resources that might help you in identifying trees;

When photographing trees, there are a few things you will need to snap shots of for the ID to be confirmed, especially with dormant deciduous trees. Three features that are important to get an accurate identification are;
  • Bark
  • Buds
  • Branches

Three photographs showcasing different parts of the plant in question will allow other naturalists to confirm the identifying features you have listed in the “notes” field.

While you are outside this winter, keep an eye out for other winter weeds and wild vegetation, and consider adding them as sightings to the iNaturalist project! They might not count towards the challenge, but it is good practice.

To submit your observations, please fill this form.

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Envirothon Teams

GOAL: As a team, identify 15 trees. You must list at least three (3) key identifying features in the “notes” field of each observation to justify your reasoning.
BONUS: Measure three (3) of the trees as you are identifying it; find the DBH and/or height of the tree, using the methods described in this handout from 2020. Post these measurements in the “notes” field!

Registered Individuals

GOAL: As an individual, identify 5 trees. You must list at least three (3) key identifying features in the “notes” field of each observation to justify your reasoning.
BONUS: Measure one (1) of the trees as you are identifying it.

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This challenge is brought by Ontario Envirothon sponsors

Maple Leaves Forever
Algonquin Forestry Authority

Posted by braymade braymade, March 05, 2021 22:04

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