Characteristics
Pteridophytes
Equisetum hyemale L. var. affine (Engelm.)A.A.Eaton
SCOURING-RUSH
**
The recognition of this taxon at the species level as Equisetum prealtum has been advocated (Christenhusz et al. 2019).
Native
FACW (NWPL)
FACW (DEP)
**
Classification
EQUISETALES
Equisetum hyemale L. var. affine (Engelm.)A.A.Eaton - SCOURING-RUSH
Citation
EQUISETUM HYEMALE Linnaeus, var. AFFINE (Engelmann) A. A. Eaton, Fern Bull. 11: 75, 111. 1903.
Equisetum robustum A. Braun ex Engelmann, var. affine Engelmann 1844.
MISSOURI: Near St. Louis, banks of Mississippi River near Jefferson Barracks, Aug 1843, Engelmann s.n. (holotype: MO).
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
Equisetum affine
Equisetum affine (Engelmann) Engelmann ex Rydberg, Fl. Rocky Mts. 1052. 1917.
BASIONYM: Equisetum robustum A. Braun ex Engelmann, var. affine Engelmann 1844.
Equisetum californicum
Equisetum californicum (Milde) G. N. Jones, Univ. Wash. Publ. Biol. 7: 23, 174. 1938.
BASIONYM: Equisetum hyemale Linnaeus, var. californicum Milde 1862.
Equisetum hyemale forma herbaceum
Equisetum hyemale Linnaeus, forma herbaceum (A. A. Eaton) M. Broun, Index N. Amer. Ferns 89. 1938.
BASIONYM: Equisetum hyemale Linnaeus, var. herbaceum A. A. Eaton 1903.
Equisetum hyemale forma polystachyum
Equisetum hyemale Linnaeus, forma polystachyum Prager ex A. A. Eaton, in Gilbert, List N. Amer. Pterid. 26. 1901.
Equisetum hyemale forma pumilum
Equisetum hyemale Linnaeus, forma pumilum (A. A.Eaton) Marie-Victorin, Contr. Lab. Bot. Univ. Montreal 9: 89. 1927.
BASIONYM: Equisetum hyemale Linnaeus, var. pumilum A. A. Eaton 1903.
Equisetum hyemale forma ramigerum
Equisetum hyemale Linnaeus, forma ramigerum A. Braun ex A. A. Eaton, in Gilbert, List N. Amer. Pterid. 26. 1901.
Equisetum hyemale forma ramosum
Equisetum hyemale Linnaeus, forma ramosum A. A. Eaton, Fern Bull. 11: 112. 1903, nom. illegit.
BASIONYM: Equisetum hyemale Linnaeus, forma ramigerum A. Braun ex A. A. Eaton 1901.
Equisetum hyemale subsp. affine
Equisetum hyemale Linnaeus, subsp. affine (Engelmann) W. Stone, Pl. S. New Jersey 138. 1912 ("1911"); (Engelmann) Calder & Roy Taylor, Canad. J. Bot. 43: 1387. 1965.
BASIONYM: Equisetum robustum A. Braun ex Engelmann, var. affine Engelmann 1844.
Equisetum hyemale subsp. robustum
Equisetum hyemale Linnaeus, subsp. robustum (A. Braun ex Engelmann) A. A. Eaton, Fern Bull. 11: 75. 1903.
BASIONYM: Equisetum robustum A. Braun ex Engelmann 1843.
Equisetum hyemale var. californicum
Equisetum hyemale Linnaeus, var. californicum Milde, Verh. K.K. Zool.-Bot. Ges. Wien 12: 1264. 1862.
TYPE: CALIFORNIA:
Specimens and Distribution
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Notes
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Plant Photos
