Your native wildflower looks similar to Stylophorum diphyllum, Celandine poppy.
1. is a hellebore, Helleborus x hybridus
4. Pachysandra terminalis
Evil vine is bittersweet, an invasive, Celastrus orbiculatus

14. possibly Liriope

I think your native wildflower is a waterleaf, perhaps Virginia Waterleaf. It looks exactly like my Virginia Waterleaf, but I have to admit I am not familiar with the other waterleaf species, so I can't be sure.

Thanks for replies. I finally found my order list...of the native plants I'd ordered and recently planted. So I think the mystery plant is one of the following:

virginia bluebell

green cone flower

great blue lobelia

blue wood aster

joe pye weed

??

I DID google all their photos, but it doesn't seem to positively match with any of the images...so I'm sorta stumped!

Tx!

It sure looks like Green Headed Coneflower/Rudbeckia laciniata. Link below for good photos. There is also a cultivar called 'Herbstsonne', a big and beefy version that is more in trade, so you may have bought that one. Either way, a pretty plant.

Here is a link that might be useful: Green Headed Coneflower

The vine appears to be Bittersweet Nightshade (Solanum dulcamara). Both the leaf shape and flower shape are distinctive. Here is a link to some images on my Web site.

Here is a link that might be useful: Bittersweet Nightshade

another link about Bittersweet nightshade.

Here is a link that might be useful: bittersweet

Thanks for replies guys! Interesting on bittersweet nightshade...the last link said something like "all parts of the plant are toxic to humans and wildlife". So I would take that to mean that the berries that come out in the Fall serve no use to the local birds...? If that's the case, and it's also invasive, then I think I'm gonna cut it back right away. (I can't get it at the root because it's located in an inaccessible area....)

Regarding your troubled viburnum, looks like a mapleleaf viburnum. Are you going to keep it in a container? If so you may want to repot it into a pot twice the size of what it is in. Prune back any dead wood. But I'd plant it in your garden if I were you. It only grows 3-6 ft. tall. So it won't take up alot of space.

The berries on the ground sure look like mulberries, though I've never seen white ones like that.

--Ron