Doodia maxima

{{Short description|Species of fern}}

{{Speciesbox

| image = Doodia maxima - Botanischer Garten München-Nymphenburg - DSC08031.JPG

| image_caption =

| taxon = Doodia maxima

| authority = (R.Br.) J.Sm.

| synonyms =

{{Species list

|Doodia aspera var. blechnoides|(Fée) Bailey

|Doodia blechnoides|A.Cunn.

|Blechnum maximum|(R.Br. ex C.Chr.) Christenh.

|Woodwardia blechnoides|Fée

|Woodwardia desvauxii|Moore

}}

| synonyms_ref =

}}

Doodia maxima (synonym Blechnum maximum), also known as the giant rasp fern, occurs in moist open forests in eastern Australia. It was considered to be a natural hybrid.{{cite web |title=Doodia maxima|work= PlantNET - NSW Flora Online|url=http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Doodia~maxima|accessdate=2012-11-15}} Some sources place the species in the genus Blechnum,{{cite journal

|author=Maarten J. M. Christenhusz, Xian-Chun Zhang & Harald Schneider

|year=2011

|title=A linear sequence of extant families and genera of lycophytes and ferns

|journal=Phytotaxa|volume=19|pages=7–54

|doi=10.11646/phytotaxa.19.1.2

|url=http://www.mapress.com/phytotaxa/content/2011/f/pt00019p054.pdf}} others, including the Pteridophyte Phylogeny Group classification of 2016 (PPG I), place it in Doodia.