Difference between revisions of "Equisetum hyemale subsp. affine"
Canad. J. Bot. 43: 1387. 1965.
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|year=1965 | |year=1965 | ||
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Equisetum robustum var. affine | |name=Equisetum robustum var. affine | ||
|authority=Engelmann | |authority=Engelmann | ||
| + | |publication_title=Amer. J. Sci. Arts | ||
| + | |publication_place=46: 88. 1844 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|elevation=0–3000 m | |elevation=0–3000 m | ||
|distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska including the Aleutian Islands;all other states;Mexico;Central America in Guatemala. | |distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska including the Aleutian Islands;all other states;Mexico;Central America in Guatemala. | ||
| − | |discussion=<p>In southern and central to western regions plants tend to be taller and have more persistent teeth (<i>Equisetum</i> robustum, E. prealtum); in the Far West they often have bituberculate ridges (<i>E. hyemale</i> <i></i>var.<i> californicum</i>). <i>Equisetum hyemale</i> subsp. hyemale is found in Europe and Asia to northwestern China in Xinjiang.</p> | + | |discussion=<p>In southern and central to western regions plants tend to be taller and have more persistent teeth (<i>Equisetum</i> robustum, E. prealtum); in the Far West they often have bituberculate ridges (<i>E. hyemale</i> <i></i></i>var.<i><i> californicum</i>). <i>Equisetum hyemale</i> subsp. hyemale is found in Europe and Asia to northwestern China in Xinjiang.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1965 | |publication year=1965 | ||
|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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V2/V2_735.xml |
|genus=Equisetum | |genus=Equisetum | ||
|subgenus=Equisetum subg. Equisetum | |subgenus=Equisetum subg. Equisetum | ||
Revision as of 18:57, 24 September 2019
Aerial stems persisting more than a year, unbranched, 18–220 cm; lines of stomates single; ridges 14–50. Sheaths when mature dark-girdled, brown to gray above girdle, squarish in face view, 4.5–17 × 3.5–18 mm; teeth 14–50, articulate and promptly shed or persistent. Cone apex pointed; spores green, spheric. 2n =216.
Phenology: Cones maturing in summer, old stems sometimes developing branches with cones in spring.
Habitat: Moist roadsides, riverbanks, lakeshores, woodlands
Elevation: 0–3000 m
Distribution
Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska including the Aleutian Islands, all other states, Mexico, Central America in Guatemala.
Discussion
In southern and central to western regions plants tend to be taller and have more persistent teeth (Equisetum robustum, E. prealtum); in the Far West they often have bituberculate ridges (E. hyemale var. californicum). Equisetum hyemale subsp. hyemale is found in Europe and Asia to northwestern China in Xinjiang.
Selected References
None.