woodland horsetail
(Equisetum sylvaticum)
Conservation • Wetland • Description • Habitat • Biology • Use • Distribution • Taxonomy
Conservation Status |
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| IUCN Red List | not listed |
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| NatureServe | NNR - Unranked SNR - Unranked |
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| Minnesota | not listed |
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Wetland Indicator Status |
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| Great Plains | FACW - Facultative wetland |
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| Midwest | FACW - Facultative wetland |
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| Northcentral & Northeast | FACW - Facultative wetland |
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Description |
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Height |
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10″ to 27″ |
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Similar Species |
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| This is the only horsetail on which the branches are themselves branched. | ||
Habitat |
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Moist. Coniferous, deciduous, and mixed forests, thickets, meadows, bogs, swamps, and streambanks. Partial shade. |
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Biology |
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Sporulation |
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April through May |
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Use |
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Distribution |
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Sources |
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| 6/11/2018 | ||||
Nativity |
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Native |
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Occurrence |
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Common |
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Taxonomy |
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| Kingdom | Plantae (green algae and land plants) | ||
| Subkingdom | Viridiplantae (green plants) | ||
| Infrakingdom | Streptophyta (land plants and green algae) | ||
| Superdivision | Embryophyta (land plants) | ||
| Division | Tracheophyta (vascular plants) | ||
| Subdivision | Polypodiophytina | ||
| Class | Polypodiopsida (ferns) | ||
| Subclass | Equisetidae (horsetails) | ||
Order |
Equisetales (horsetails) | ||
Family |
Equisetaceae (horsetails) | ||
Genus |
Equisetum (horsetails) | ||
| Subgenus | Equisetum (horsetails) | ||
There are 15 species of Equisetum, which is the only living genus in the family Equisetaceae, which is the only family in the order Equisetales, which is the only order in the class Equisetopsida. The history of Equisetum has been traced 300 million years to the Cretaceous period, and possibly to the Triassic period. That could make Equisetum the oldest living genus of vascular plants. The genus Equisetum is divided into two subgenera, Equisetum and Hippochaete. Woodland horsetail is one of the eight species in the subgenus Equisetum. Six of those eight species are found in North America. Five are found in Minnesota. |
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Subordinate Taxa |
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This pant is highly variable. Some sources describe three subspecies based on the amount of branching and the texture of the branches. Most sources do not recognize any subspecies. |
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Synonyms |
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Equisetum sylvaticum var. multiramosum Equisetum sylvaticum var. pauciramosum |
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Common Names |
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The stems are regularly branched, the branches appearing in a whorl at each stem node. This gives the plant the appearance of a horse’s tail, giving rise to the common name “horsetail”. |
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sylvan horsetail wood horsetail woodland horsetail |
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| Visitor Photos | |||
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| MinnesotaSeasons.com Photos | |||
| Fertile Stems | |||
Plant |
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Cones |
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Branches |
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Sheath |
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Slideshows |
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| Visitor Videos | |||
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| Other Videos | |||
| Bospaardestaart Equisetum Sylvaticum 11 mei 2011.wmv Wim Derks |
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About
Uploaded on May 12, 2011 Een nogal zeldzame, bedreigde plant op een onverwachte plek gevonden! Google translation: A rather rare , endangered plant found in an unexpected place! |
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| Visitor Sightings | ||||
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| MinnesotaSeasons.com Sightings | ||||
________________________ * Outside of reported range. Needs verification |
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