Dryopteris affinis robusta

Common name

Robust Scaly Male Fern

Dryopteris affinis robusta Robust Scaly Male Fern

Robust Scaly Male Fern

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Natural History Museum

Latin names

Class	Pteridopsida
Order	Polypodiales
Family	Aspidiaceae
Genus	Dryopteris
Species	affinis
Subspecies	robusta
Alternative Family name	Dryopteridaceae

Geographic details

Habitat	Woodland, open hill, scree
Soil type	alkaline
Distribution	Throughout British Isles
Native	Yes

General

Plant height	large
Branched	No
Stipe description	scaly
Habit	lvs shuttlecock
Conservation status	not threatened

Leaf details

Separate fertile leaves	No
Leaf shape	ovate-lanceolate
Pinnae	1-pinnate-pinnatisect
Wintergreen	No

Spore details

homospore

Yes

Rhizome details

Rhizome description	short
Rhizome scales	gold, dark base
Rhizome position	erect

Sori details

Sori shape	kidney
Sori placement	in row either side of midrib

Indusium details

indusium present	Yes
indus_shape	kidney
indusium description	thin, low