Over 7,000 free botanical photos and drawings are available on Bruce Kirchoff’s Flickr feed. Most images are licensed, most licensed CC-BY 2.0 (a few are CC0 1.0 Universal…
Elizabeth J. Hermsen has provided great illustrated web-based introductions to plant systematics, anatomy and morphology as part of the Digital Encyclopedia of Ancient Life. These are great teaching…
University of Wisconsin-Madison’s Dept of Botany have many teaching images available on their Virtual Foliage homepage. They are divided up in three themed sets (linked below with an…