One of the most common is the holly, Ilex aquifolium, I. opaca and related species, in the Aquifoliaceae. With its dark green, evergreen, spine-tipped and lobed leaves paired with round red berries, it is largely unmistakable and easy to identify and remember.
|European holly, Ilex aquifolium. Plate from Atlas des plantes de France (1891).|
Public domain image (Wikimedia).
So, for a change, presented here is an example of persistent botanical accuracy, not inaccuracy. A Google Image search pulls up hundreds of true holly images, despite a large variety in artistic design and media; here are just one example of a screen shot:
|Screenshot of the results of a Google search for 'holly', by BotanicalAccuracy.com|