| Species For the Order Orthoseirales from All Park Watersheds | ||||
|---|---|---|---|---|
| Watershed | Genus | Species | Subspecies | Common Name |
| Cataloochee Creek | Orthoseira | roeseana | Diatom | |
| Greenbriar Creek | Orthoseira | dendroteres | Diatom | |
| Orthoseira | roeseana | Diatom | ||
| Orthoseira | spinosa | Diatom | ||