As written in their website, https://plants.jstor.org/
Global Plants is the world’s largest database of digitized plant specimens and a locus for international scientific research and collaboration.
This website has an online herbarium that can help you identify your plants. In addition to this, they have so much resources, that you can discover a lot from nature much more than from your local environment.
Disclaimer: this is a suggestion, that I found via MOOC Course: ” NewcastleX: NHI101xDrawing Nature, Science and Culture: Natural History Illustration 101 “. I found it very useful and I want to share it. Feel free to suggest me other samples!