Joerstadia

{{Short description|Genus of fungi}}

{{Taxobox

| image =

| image_caption =

| regnum = Fungi

| divisio = Basidiomycota

| classis = Pucciniomycetes

| ordo = Pucciniales

| familia = Phragmidiaceae

| genus = Joerstadia

| genus_authority = Gjaerum & Cummins (1982)

| type_species = Joerstadia alchemillae

| type_species_authority = (Bacc.) Gjaerum & Cummins (1982)

| subdivision_ranks = Species

| subdivision = J. alchemillae

J. aliena

J. keniensis

J. patouillardii

}}

Joerstadia is a genus of rust fungi in the family Phragmidiaceae. The genus contains four species known from Africa, including Madagascar, which grow on Alchemilla plants.