User:Ninjatacoshell/List of nodulated actinorhizal plants and their symbionts

Introduction
Under nitrogen-limiting conditions, many plants are capable of forming a symbiotic interaction with nitrogen-fixing bacteria, resulting in a new plant organ, called a root nodule. This most commonly occurs with legumes, but has been found in select cases outside of that family: actinorhizal plants. Even though it is not considered an actinorhizal plant, Trema (syn. Parasponia) is included here since it is closely related to actinorhizal plants.

This list does not include other sources of root galls or tumors, such as pathogenic bacteria (e.g., Agrobacterium tumefaciens) or parasitic nematodes (e.g., Meloidogyne javanica). It also does not include coralloid roots infected with cyanobacteria (often incorrectly referred to as nodulation), as is found in Gunnera and cycads, or myconodules, as found in Alnus. Older sources may indicate epithets which are no longer standard and should be updated to reflect currently accepted nomenclature (but a note should be included to indicate the difference). Plant species which are listed, but for which no bacterial species has been identified, are included based on the presence of nitrogen-fixing root nodules. This list is sortable (click on the heading you wish to sort by).