Can anyone identify these plants growing in bonsai pot?

[bobsai]

I thought they were maybe fukiens, but neither have leaves at all shaped like my [sadly dormant] fukien. The smaller of the two has tiny buds that carry 10 small brown seeds in them about the size of the head of a needle.

 

[pweifan]

Not sure about the first one, but the second plant is definitely a species of persicaria (knot weed).

 

[W3rk]

I thought they were maybe fukiens, but neither have leaves at all shaped like my [sadly dormant] fukien. The smaller of the two has tiny buds that carry 10 small brown seeds in them about the size of the head of a needle.
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Dormant Fukien? I don't know the species except that it's either tropical or sub-tropical. Which should make it an evergreen that doesn't go dormant - in your photo its' leaves are looking a bit sickly/yellowish brown and maybe dry?

 

[penumbra]

Plant is not at all healthy and I suspect it is dying. I am just guessing that it has root rot judging from the picture of the soil. The other plants are opportunistic weeds, probably due to wet soil.

 

[Madcat]

My guess is Chinese Elm... It needs LOTS of sun.

 

[M. Frary]

Weeds.
Get rid of them.