Contains 3 accepted taxa overall.
Characteristics
Classification
Citation
PTERIDIUM Gleditsch ex Scopoli, Fl. Carniol. 169. 1760, nom. cons.
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TYPE: Pteridium aquilinum (Linnaeus) Kuhn (Pteris aquilina Linnaeus)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Pteridium aquilinum var. caudatum | LACY BRACKEN | Native FACU (NWPL) | ||
| Pteridium aquilinum var. latiusculum | EASTERN BRACKEN | Native FACU (NWPL) | ||
| Pteridium aquilinum var. pseudocaudatum | TAILED BRACKEN | Native FACU (NWPL) |
Identification Key
1. Plants to ca. 2.5 m tall; ultimate leaf segments mostly 5-24 times longer than wide, 1-4(-6.5) mm wide, often appearing widely spaced;
1. Plants to ca. 1 m tall; ultimate leaf segments mostly 2-8.5 times longer than wide, mostly 3-8 mm wide, mostly appearing closely spaced
2
2. Leaf segment margins sparsely to densely pubescent
2. Leaf segment margins glabrous, rarely sparsely pilose
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Cincinalis | Cincinalis Gleditsch, Syst. Pl. 290. 1764. | TYPE: = Pteridium Gleditsch ex Scopoli 1760. | |
| Eupteris | Eupteris Newman, Phytologist 2: 278. 1845. | TYPE: Eupteris aquilina (Linnaeus) Newman (Pteris aquilina Linnaeus) = Pteridium Gleditsch ex Scopoli 1760. | |
| Filix | Filix Ludwig, Inst. Regn. Veg., ed. 2. 142. 1757, non Seguier 1754. | TYPE: Filix aquilina (Linnaeus) Woynar (Pteris aquilina Linnaeus) = Pteridium Gleditsch ex Scopoli 1760. | |
| Filix-foemina | Filix-foemina Hill ex Farwell, Amer. Midl. Naturalist 12: 290. 1931. | TYPE: Filix-foemina aquilina (Linnaeus) Farwell (Pteris aquilina Linnaeus) = Pteridium Gleditsch ex Scopoli 1760. | |
| Ornithopteris | Ornithopteris (J. Agardh) J. Smith, Hist. Filicum 297. 1875, non Bernhardi 1805. | BASIONYM: Pteris Linnaeus, sect. Ornithopteris J. Agardh, Recens. Sp. Gen. Pteridis 45. 1839. | TYPE: Ornithopteris aquilina (Linnaeus) J. Smith (Pteris aquilina Linnaeus) = Pteridium Gleditsch ex Scopoli 1760. |