Réseau de surveillance de plantes exotiques envahissantes


Plant Photographs

Photo protocol

You will be asked to provide a photograph of the observed species when you fill out the observation form. Without a photograph, your observation will be kept and posted on the map, but we will be unable to validate it; if your photo does not make it possible for us to identify the species with certainty, your observation may not be validated.

Please attach a single photo to each form. To facilitate validation of your observation, please follow recommendations for each identified species.

  1. Reed Canarygrass
    2. Take the photograph in proximity to the plant spike.

  2. Giant Hogweed
    3. Photograph the upper part of the plant and include part of the stem, some leaves and umbellates.
    Warning: Do not touch or approach Giant Hogweed, since any contact with the milky sap in the stems or leaves can cause severe irritation, burns or dermatitis.

  3. Flowering Rush
    4. Photograph the flowers or seeds.

  4. Carolina Fanwort
    5. Take a close-up of a leafy section of the stem, ideally in a water container with a white bottom.

  5. Water Chestnut
    6. Photograph the plant out of water, using a ruler or pen to gauge the length of the specimen.

  6. Hydrilla
    7. Take a close-up of a leafy section of the stem, ideally in a water container with a white bottom.

  7. Common Frogbit
    8. Photograph the plant out of water. Use a letter-size sheet of paper or your hand as background.

  8. Eurasian Watermilfoil
    9. Take a close-up of a leafy section of the stem, ideally in a water container with a white bottom.

  9. Glossy Buckthorn
    10. Take a close-up of a branch showing multiple leaves, where the veins can be easily distinguished.

  10. Common Buckthorn
    11. Take a close-up of a branch showing multiple leaves, where the veins can be easily distinguished.

  11. Japanese Knotweed
    12. Photograph a blooming plant. If the blooming season has not begun, take a close-up of a branch that shows clearly visible leaves.

  12. Common Reed
    13. Take a close-up of a spike and part of the stem.

  13. Purple Loosestrife
    14. Take a close-up of a spike.

Additional Photos

Additional photographs that may assist us in validating your observations more quickly may be sent by e-mail to reseauplantes@glu.org.

Please use the following guidelines when taking additional photos.

Plant height

  • Use a reference point to show the plant height. For example, you might photograph someone standing next to the plant, or some background whose size is known such as stairs, a fence, a bicycle, etc.

Leaf dimensions and characteristics

  • Use a sheet of white paper as background when you take a photograph of a plant leaf and ensure that the contours of the leaf are clearly visible
  • If you do not have a sheet of paper available, place the leaf on a surface of contrasting colour so as to clearly display the shape of the leaf
  • Place the leaf in the palm of your hand to show its dimensions

Stems

  • Photograph plant stems in such a way as to show their size, colour and special features

Surroundings

  • Take a distance shot to show plant surroundings
  • If a number of plants of a single species are growing in the same location, try to photograph the entire colony or group of individuals.