Your choices a limited to things that can be put on the bottom.
Your choices ( assuming your desk lamp is at least a 50 wat bulb)
Water sprite, hornwort, glosso, mini/dwarf swords.... and possibly whisteria
You would half to trim all these plants to keep them well in the jar.
Hornwort would probably be trimmed once a week depending on groth, water sprite is pretty much the same but look for roots they can float at the top ( they won't spread like wild fire like duck weed too. So you could keep a baby water sprite afloat on the top.
You would half to plan small plants, and keep triming to keep them the size you bought them. I probably would not use more then three kinds of plants ( possibly four if you go with a floating baby water sprite) You need a tall, your hornwort would work best for that, your bottom would be glosso and your mid range would be the mini swords or nano's.
Also you want to use a small gravel, or substrate, you also want to make sure the lamp stays on for at least 6 hours a day. You also want to make sure that You pick a good Hard scape.
Lets talk hardscape, small aqua stones ( fish safe that you get at the pet store) glass pebbles, and small peaces of drift wood ( tiny peaces) would set if off into a nice NANO planted tank.
Hope this helps. Also please get hornwort, it will filter and prevent algae from growing in such a small space.
If you need any help or tips your welcome to pm me about it. I am currently working on my planted tank. ( its a 34 gallon, and i have a planted 1.5 gallon bowl too)