Some other plants live in association with a cyanobiont (cyanobacteria such as Nostoc) which fix nitrogen for them:
* Some lichens such as Lobaria and Peltigera
* Mosquito fern (Azolla species)
* Cycads
* Gunnera
* Blasia (liverwort)
* Hornworts
Some symbiotic relationships involving agriculturally-important plants are:
* Sugarcane and unclear endophytes
* Foxtail millet and Azospirillum brasilense
* Kallar grass and Azoarcus sp. strain BH72
* Rice and Herbaspirillum seropedicae
* Wheat and Klebsiella pneumoniae
* Maize landrace Sierra Mixe / olotón and various Bacteroidota and Pseudomonadota