Characteristics
Pteridophytes
Osmunda spectabilis Willd.
ROYAL FERN
**
The typical variety, var. regalis, is found in the Old Word (Fernald 1930). Treating the American taxon, var. spectabilis, as a distinct species has also been advocated based on analysis of DNA which suggests var. spectabilis is more closely related to O. japonica (Metzgar et al. 2008; Tsutsumi et al. 2011; Arana et al. 2015; Schneider et al. 2015).
Native OBL (NWPL) OBL (DEP)
**
Classification
OSMUNDALES
Osmunda spectabilis Willd. - ROYAL FERN
Citation
OSMUNDA SPECTABILIS Willdenow, Sp. Pl. 5(1): 98. 1810.
**
PENNSYLVANIA: Without data, Muhlenberg s.n. (lectotype: B-W; isolectotype: S). Lectotypified by Tryon & Stolze, Fieldiana, Bot. 20: 23. 1989.
Species Distribution Map

Based on vouchered plant specimens from wild populations. Cultivated occurrences are not mapped. Click on a county to display its name.

Source
County
Herbaria
Literature Citation (If Applicable)
No sources found
Synonyms
Synonym
Full Citation
Basionym
Type
Osmunda glaucescens
Osmunda glaucescens Link, Fil. Sp. 20. 1841.
 
 
Osmunda gracilis
Osmunda gracilis Link, Hort. Berol. 2: 145. 1833.
 
TYPE: Without data, Herb. Link. 9 (holotype: B; isotype: PH?).
Osmunda gracilis Brade
Osmunda piresii Brade, Sellowia 17: 51, f. 1. 1965.
 
TYPE: BRAZIL: Goias: Between Brasilia and Niquelandia, 10 May 1963, Pires et al. 9674 (holotype: HB; isotype: UB).
Osmunda mexicana
Osmunda mexicana Fée, Mém. Foug. 9: 43. 1857.
 
TYPE: MEXICO: Oaxaca: Without data, Galeotti 6388 (holotype: P?; isotype: BR).
Osmunda palmeri
Osmunda palmeri A. Bobrov, Novit. Syst. Pl. Vasc. 1968: 8. 1968.
 
TYPE: MEXICO: Jalisco: Río Blanco, s.d., Palmer 660 (holotype: LE; isotypes: GH, K, UC, US).
Osmunda palustris
Osmunda palustris Schrader, Gött. Gel. Anz. 1824: 866. 1824.
 
TYPE: BRAZIL: Bahia: Mucuri, May 1816, Wied-Neuwied s.n. (lectotype: BR; isolectoptypes: BR, MEL). Lectotypified by Moraes et al., Scrip. Bot. Belg. 49: 49. 2013.
Osmunda regalis forma anomala
Osmunda regalis Linnaeus, forma anomala (Farwell) S. K. Harris, Rhodora 35: 352. 1933.
BASIONYM: Osmunda regalis Linnaeus, subvar. anomala Farwell 1931.
 
Osmunda regalis forma intercallata
Osmunda regalis Linnaeus, forma intercallata Dole, Fl. Vermont, ed. 3. 4. 1937.
 
TYPE: VERMONT:
Osmunda regalis forma linearis
Osmunda regalis Linnaeus, forma linearis Clute, Fern Bull. 17: 10. 1909.
 
TYPE: FLORIDA: Seminole Co.: Without data, Rapp s.n. (holotype: BUT?).
Osmunda regalis forma nana
Osmunda regalis Linnaeus, forma nana Fernald, Rhodora 51: 103. 1949.
 
TYPE: CANADA: Newfoundland: NE base and slopes of Blomidon ("Blow-me-down") Mountains, Bay of Islands, 2 Aug 1910, Fernald & Wiegand 2341 (holotype: GH).
Specimens and Distribution

Click on an Accession Number to view additional details about the specimen.

Counties listed:

Range of years during which specimens were collected:

Accession No.
Country
State
County
Collection Date
Collector & Collection No
Notes
Image
No specimens found
Plant Photos
Osmunda spectabilis - 25
Osmunda_spectabilis3.jpg
Osmunda spectabilis - 25
Osmunda_spectabilis2.jpg
Osmunda spectabilis - 69
Osmunda_spectabilis8.jpg
Osmunda spectabilis - 69
Osmunda_spectabilis5.jpg
Osmunda spectabilis - 69
Osmunda_spectabilis6.jpg
Osmunda spectabilis - 164
Osmunda_spectabilis.jpg
Osmunda spectabilis - 199
Osmunda_spectabilis9.jpg
Osmunda spectabilis - 229
Osmunda_spectabilis7.jpg
Osmunda spectabilis - 233
Osmunda_spectabilis4.jpg