Some of the resources on plant identification developed for a practical run by The University of Hertfordshire
Dichotomous key for woodland ground flora in Hook's Grove.
Photo guide accompaning the key with description of the important features.
Video recordings made in Hook's Grove in March 2020
These videos describe some of the common woodland species and how to distiguish similar species. Click on the image to download the video in a new tab.
Wood Speedwell (left) and Germander Speedwell growing next to each other in Hook's Grove. The latter is easy to recognise when two lines of hairs on the stem are visible, but this is not always the case.
Early Dog-violet (Viola reichenbachiana, left) has a purple un-notched spur (flower extension), Common Dog-violet (Viola riviniana, middle) has a pale notched spur and Sweet Violet (Viola odorata, right) has a hooked spur. Sweet Violets might come in a range of colours.