Difference between revisions of "Equisetum palustre"
Sp. Pl. 2: 1061. 1753.
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|name=Equisetum palustre var. americanum | |name=Equisetum palustre var. americanum | ||
|authority=Victorin | |authority=Victorin | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Equisetaceae;Equisetum;Equisetum subg. Hippochaete;Equisetum palustre | |hierarchy=Equisetaceae;Equisetum;Equisetum subg. Hippochaete;Equisetum palustre | ||
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|elevation=0–1500m | |elevation=0–1500m | ||
|distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Calif.;Idaho;Maine;Mich.;Minn.;Mont.;N.H.;N.Y.;N.Dak.;Oreg.;Pa.;Vt.;Wash.;Wis.;Eurasia s to Himalayas;n China;Korea;Japan. | |distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Calif.;Idaho;Maine;Mich.;Minn.;Mont.;N.H.;N.Y.;N.Dak.;Oreg.;Pa.;Vt.;Wash.;Wis.;Eurasia s to Himalayas;n China;Korea;Japan. | ||
| − | |discussion=<p>The name <i>Equisetum palustre</i> < | + | |discussion=<p>The name <i>Equisetum palustre</i> <i></i>var.<i> americanum</i> has been used for specimens from the flora that have longer teeth than those from Eurasia.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Equisetum palustre | name=Equisetum palustre | ||
| − | |||
|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|publication year=1753 | |publication year=1753 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V2/V2_358.xml |
|genus=Equisetum | |genus=Equisetum | ||
|subgenus=Equisetum subg. Hippochaete | |subgenus=Equisetum subg. Hippochaete | ||
Revision as of 19:47, 16 December 2019
Aerial stems monomorphic, green, branched or unbranched, 20–80 cm; hollow center small, to 1/3 stem diam.; vallecular canals nearly as large. Sheaths elongate, 4–9 × 2–5 mm; teeth dark, 5–10, narrow, 2–5 mm, margins white, scarious. Branches when present only from midstem nodes, spreading, hollow; ridges 4–6; valleys rounded; 1st internode of each branch shorter than subtending stem sheath; sheath teeth narrow. 2n =216.
Phenology: Cones maturing in summer.
Habitat: Marshes and swamps
Elevation: 0–1500m
Distribution
Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Calif., Idaho, Maine, Mich., Minn., Mont., N.H., N.Y., N.Dak., Oreg., Pa., Vt., Wash., Wis., Eurasia s to Himalayas, n China, Korea, Japan.
Discussion
The name Equisetum palustre var. americanum has been used for specimens from the flora that have longer teeth than those from Eurasia.
Selected References
None.