Common Names
Common Names in English:
Asian Lady Fern, Auriculate Lady Fern, Eared Lady Fern
Description
Genus Athyrium
Plants
generally terrestrial
. Stems short-creeping or ascending
, stolons absent. Leaves monomorphic
, usually dying back in winter. Petiole
± 0.5 times length of blade
or less, base
swollen and dentate
, persisting as trophopod over winter or not; vascular bundles
2, lateral
, lunate
in cross
section
. Blade lanceolate to elliptic
or oblanceolate
, 1--3-pinnate-pinnatifid, gradually reduced distally to confluent
, pinnatifid
apex, herbaceous. Pinnae not articulate
to rachis, segment margins
serrulate
or crenate
; proximal
pinnae often reduced, sessile to short-petiolulate, ± equilateral
; costae adaxially grooved
, grooves
continuous from rachis to costae to costules
; indument
absent or of linear
to lanceolate scales
or 1-celled glands
abaxially. Veins free
, simple
or forked
. Sori in 1 row
between midrib
and margin, round to elongate
, straight or hooked
at distal end, or horseshoe-shaped; indusia shaped like sori, persistent
, attached laterally or with narrow sinus, or indusia absent. Spores brownish, rugose
. x
= 40.
Species about 180: worldwide.
In species outside the flora
stems are sometimes long-creeping to erect
, with leaves radially or dorsiventrally arranged.Masahiro Kato "Athyrium". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org.
Physical Description
Habit: Deciduous.
Flowers: Bloom Period: n/a • Flower Color: inconspicuous, none
Size/Age/Growth
Size: 12-18" tall.
Biology
Growth
Culture: Space 12-15" apart.
Sunlight: Sun Exposure: Partial to Full Shade.
Temperature: Cold Hardiness: 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b. (map)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Pteridophyta
()
- Sinnott, 1935 Ex Cavalier-Smith, 1998
- Subphylum:
Euphyllophytina
()
- Infraphylum:
Moniliformopses
()
- Kenrick & Crane, 1997, Nom. Nud.
- Class:
Filicatae
()
- Cronquist Et Al.
- Order:
Filicales
()
- Link
- Family:
Woodsiaceae
()
- Genus:
Athyrium
()
- Roth, Tent. Fl. Germ. 3(1,1): 31, 58. 1799.
- Lady fern [Greek athyros, doorless; the sporangia only tardily push back the outer edge of the indusium]
- Specific epithet:
otophorum
- (Miq.) Koidz.
- Botanical name: - Athyrium otophorum (Miq.) Koidz.
- Specific epithet:
otophorum
- (Miq.) Koidz.
- Genus:
Athyrium
(
- Family:
Woodsiaceae
(
- Order:
Filicales
(
- Class:
Filicatae
(
- Infraphylum:
Moniliformopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Pteridophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Unambiguous Synonyms
- Asplenium otophorum Miq.
- Athyrium otophorum (Miq.) Koidz.
- Diplazium otophorum
Notes
An accepted name in the RHS Horticultural Database.
Similar Species
Members of the genus Athyrium
There are approximately 986 species in this genus. Here are just 100 of them:
A. 'Branford Beauty' · A. 'Branford Rambler' · A. accedens · A. achilleaefolium · A. achilleifolium · A. acrocarpum · A. acrostichoides · A. acrostichoideum · A. acrotis · A. aculeatum · A. acutidentatum · A. acutipinnulum · A. acutiserratum · A. acutissimum · A. acutum · A. adpressum · A. adscendens · A. aequibasale · A. aequilaterale · A. affine · A. alatum · A. allanticarpum · A. allantodioides · A. alpestre americanum · A. alpestre var. typicum · A. alpestre × filix-femina · A. alpinum · A. alternifolium · A. altum · A. amabile · A. ambiguum · A. americanum (Alpine Ladyfern) · A. ammifolium · A. amoenum · A. amplissimum · A. amplum · A. andapense · A. angustifolium · A. angustipinna · A. angustisquamatum · A. angustum f. confertum · A. angustum f. cristatum · A. angustum f. elegans · A. angustum f. laciniatum · A. angustum f. rubellum (Lady in Red Fern) · A. angustum f. typicum · A. angustum var. cristatum · A. angustum var. glanduliferum · A. angustum var. laurentianum · A. angustum var. typicum · A. anisopterum · A. annae · A. aphanoneuron · A. araiostegioides · A. arborescens · A. arboreum · A. archboldii · A. arcuatum · A. aridum · A. arisanense · A. aristulatum · A. arnottii · A. asperum · A. aspidioides · A. asplenioides f. ellipticum · A. asplenioides f. subtripinnatum · A. asplenioides var. angustum · A. asplenioides var. subtripinnatum · A. asplenioides var. typicum · A. assimile · A. atkinsonii · A. atomarium · A. atratum · A. atropurpureum · A. atrosquamosum · A. atroviride · A. attenuatum · A. attenuatum f. dentigerum · A. attenuatum f. intermedium · A. augustum · A. auriculatum · A. australe · A. austro-occidentale · A. austro-orientale · A. austro-ussuriense · A. austrooccidentale · A. austroyunnanense · A. axillare · A. azoricum · A. baishanzuense · A. bambusicola · A. banahaoense · A. bantamense · A. baoxingense · A. barbae · A. barnebyanum · A. basilare · A. bellum · A. benguetense · A. bicolor
Bibliography
- Johnson, D. M. 1986b. Trophopods in North American species of Athyrium (Aspleniaceae). Syst. Bot. 11: 26--31.
- Kato, M. 1977. Classification of Athyrium and allied genera of Japan. Bot. Mag. (Tokyo) 90: 23--40.
- Liew, F. S. 1972. Numerical taxonomic studies on North American lady ferns and their allies. Taiwania 17: 190--221.
More Info
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Notes
Contributors
- Global Biodiversity Information Facility. Accessed March 17, 2008. http://www.gbif.org Mediated distribution data from provider.
- MBLWHOI Library: Universal Biological Index and Organizer. uBio.org accessed July 23, 2008.
Identifiers
- Biodiversity Heritage Library NamebankID: 5881327
- Global Biodiversity Information Facility Taxonkey: 15904639
- Globally Unique Identifier: urn:lsid:ipni.org:names:17306750-1
- International Plant Names Index (IPNI) ID: 17306750
- Zipcode Zoo Species Identifier: 967653
