Difference between revisions of "Equisetum ×litorale"
Beitr. Pflanzenk. Russ. Reiches 4: 91. 1845.
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|elevation=0–1000 m | |elevation=0–1000 m | ||
|distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Maine;Md.;Mass.;Mich.;Minn.;Mont.;Nebr.;N.H.;N.J.;N.Y.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;S.Dak.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo. | |distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Maine;Md.;Mass.;Mich.;Minn.;Mont.;Nebr.;N.H.;N.J.;N.Y.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;S.Dak.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo. | ||
− | |discussion=<p>Equisetum × litorale is a hybrid between E. arvense and E. fluviatile. It should be expected where the parents coexist. This hybrid has been mistaken for Equisetum palustre; the solid branches with long first internodes and channeled valleys distinguish it from that species.</p> | + | |discussion=<p><i>Equisetum</i> × <i>litorale</i> is a hybrid between <i>E. arvense</i> and <i>E. fluviatile</i>. It should be expected where the parents coexist. This hybrid has been mistaken for <i>Equisetum palustre</i>; the solid branches with long first internodes and channeled valleys distinguish it from that species.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1845 | |publication year=1845 | ||
|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_760.xml |
|genus=Equisetum | |genus=Equisetum | ||
|subgenus=Equisetum subg. Hippochaete | |subgenus=Equisetum subg. Hippochaete |
Revision as of 16:50, 18 September 2019
Aerial stems monomorphic, green, branched or occasionally unbranched, 2–70 cm; hollow center 2/3–4/5 stem diam. Sheaths somewhat elongate, 3.5–8 × 2.5–6 mm; teeth dark, 7–14, narrow, 1–3 mm. Branches mostly from midstem nodes, ascending to spreading, solid; ridges 4–5; valleys channeled; proximal whorls with 1st internode of each branch equal to subtending stem sheath, distal whorls with 1st internode of each branch longer than stem sheath; sheath teeth attenuate.
Phenology: Cones maturing in early summer, but misshapen spores not shed.
Habitat: Ditches, stream banks, wet meadows
Elevation: 0–1000 m
Distribution
![V2 760-distribution-map.gif](/w/images/7/7e/V2_760-distribution-map.gif)
Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Conn., Del., Idaho, Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Mont., Nebr., N.H., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Vt., Va., Wash., W.Va., Wis., Wyo.
Discussion
Equisetum × litorale is a hybrid between E. arvense and E. fluviatile. It should be expected where the parents coexist. This hybrid has been mistaken for Equisetum palustre; the solid branches with long first internodes and channeled valleys distinguish it from that species.
Selected References
None.