The first one could be a mallow of some kind, or possibly a violet? Get some good pictures of the flowers to post here, it will help with the ID.
The second one looks a bit like purslane/pigweed: Portulaca oleracea . Is it a succulent (fleshy, juicy leaves and stems)? Maybe some better pics of the flowers would help here, too...
No flower on the first one--almost looks like a fake silk plant (texture)...second one had a slightly woody stem. I'll try to get a better pic of flower
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