I’ve completed four dissections and I include links below from Thinglink. I may try to add a pic or two of habitat but otherwise they are relatively complete. I’m frustrated I can’t figure out the species of rose, but it’s likely a horticultural variety. Also, I’ve never used Thinglink but seem to have the hang of it.
Cheers
Campanula rotundifolia, explore my annotations in Thinglink
Penstemon eatonii, with annotations in Thinglink
Here is an Asteraceae, curlycup gumweed (Grindelia squarrosa) and a nice cross section through the inflorescence.
The fourth one is a member of the Rose family (Rosaceae), check it out in Thinglink.