Identifying N. American Livia psyllids to species from their galls is not always possible because we know too little about their host relationships. Writing in 1997, Hodkinson & Bird described 10 Livia species occurring in North America, but only four were associated with any specific species of Juncus or Carex. If you find these galls in spring or summer, try to (1) find and photograph the psyllids and (2) take a series of photos of the host plant.

You may need to put a tray or cloth on the ground and shake the plant to find the adult psyllids. Since they are small --- forewings ~ 2mm long --- getting a diagnostic photo may be difficult. Consider taking a couple back with you, chilling them, and taking photos through a high-quality magnifier or a lens extender. Get a dorsal photo that shows the antenna length plus a photo showing wing venation. If you only find subadults, try putting a few in a sealed, labeled container with some plant material in the hope that in days or weeks you will have an adult to photograph. [To improve your chances of success, read https://bugtracks.wordpress.com/rearing//]

Getting the photos needed to identify the rush or sedge is also challenging, because they are tricky to ID. For tips on taking photos that will allow a knowledgeable person to ID the sedge, rush, or grass species you found, go to https://forum.inaturalist.org/t/identifiers-what-do-you-id-and-how-can-observers-make-it-easier-to-do-so/8835/12 and scroll down to the comments by Sedgequeen.