what are some good plants for shrimp?

[genocidex]

im hoping to get my hands on some flame moss, would love some for my shrimp but if i cant get some or if its too expensive, what are some other plants that will help the shrimp?
ive read the slower growing plants/mosses are good as they will help the small shrimp.

oh and this is for a 5.5g so hieght might be an issue, lighting im not too worried about but would like something that isnt too needy for nutrients.

[wijnands]

P. Helferi doesn't get high at all and it constantly has shrimp all over it. Any of the small anubias should also work.

[PhillipOrigami]

a bit old, but Shrimps enjoy grazing on stuff- and many plants are too difficult to graze on. Most mosses work well, and Riccia Fluitans(crystalwort) are good grazing plants.