familyEquisetaceae
genusEquisetum
subgenusEquisetum subg. Equisetum
speciesEquisetum hyemale
subspeciesEquisetum hyemale subsp. affine
Difference between revisions of "Equisetum hyemale subsp. affine"
Canad. J. Bot. 43: 1387. 1965.
Basionym: Equisetum robustum var. affine Engelmann
Synonyms: Equisetum hyemale var. affine (Engelmann) A.A. Eaton Equisetum hyemale var. californicum J.Milde Equisetum hyemale var. pseudohyemale (Farwell) C.V. Morton Equisetum hyemale var. robustum (A.Braun) A.A. Eaton Equisetum prealtum unknown
Treatment appears in FNA Volume 2.
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|name=Equisetum hyemale var. affine | |name=Equisetum hyemale var. affine | ||
|authority=(Engelmann) A.A. Eaton | |authority=(Engelmann) A.A. Eaton | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Equisetum hyemale var. californicum | |name=Equisetum hyemale var. californicum | ||
|authority=J.Milde | |authority=J.Milde | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Equisetum hyemale var. pseudohyemale | |name=Equisetum hyemale var. pseudohyemale | ||
|authority=(Farwell) C.V. Morton | |authority=(Farwell) C.V. Morton | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Equisetum hyemale var. robustum | |name=Equisetum hyemale var. robustum | ||
|authority=(A.Braun) A.A. Eaton | |authority=(A.Braun) A.A. Eaton | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Equisetum prealtum | |name=Equisetum prealtum | ||
|authority=unknown | |authority=unknown | ||
| Line 41: | Line 41: | ||
|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 (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.</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>var.<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= | ||
| Line 65: | Line 65: | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_735.xml |
|genus=Equisetum | |genus=Equisetum | ||
|subgenus=Equisetum subg. Equisetum | |subgenus=Equisetum subg. Equisetum | ||
Revision as of 16:50, 18 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.
Lower Taxa
None.