Difference between revisions of "Equisetum ×litorale"

Kühlewein

Beitr. Pflanzenk. Russ. Reiches 4: 91. 1845.

Common names: Prêle littorale
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="stem location;stem architecture;stem coloration;stem architecture;stem architecture;stem some measurement"><b>Aerial </b>stems monomorphic, green, branched or occasionally unbranched, 2–70 cm;</span> <span class="statement" id="st-d0_s1" data-properties="center architecture;center count">hollow center 2/3–4/5 stem diam.</span> <span class="statement" id="st-d0_s2" data-properties="sheath shape;sheath length;sheath width"><b>Sheaths </b>somewhat elongate, 3.5–8 × 2.5–6 mm;</span> <span class="statement" id="st-d0_s3" data-properties="tooth coloration;tooth count;tooth size or width;tooth some measurement">teeth dark, 7–14, narrow, 1–3 mm.</span> <span class="statement" id="st-d0_s4" data-properties="branch orientation;branch orientation;branch orientation;branch architecture"><b>Branches </b>mostly from midstem nodes, ascending to spreading, solid;</span> <span class="statement" id="st-d0_s5" data-properties="ridge count">ridges 4–5;</span> <span class="statement" id="st-d0_s6" data-properties="valley shape">valleys channeled;</span> <span class="statement" id="st-d0_s7" data-properties="internode variability;distal whorl length or size;internode length or size">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;</span> <span class="statement" id="st-d0_s8" data-properties="sheath tooth shape">sheath teeth attenuate.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Aerial </b>stems monomorphic, green, branched or occasionally unbranched, 2–70 cm; hollow center 2/3–4/5 stem diam. <b>Sheaths</b> somewhat elongate, 3.5–8 × 2.5–6 mm; teeth dark, 7–14, narrow, 1–3 mm. <b>Branches</b> 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.</span><!--
  
 
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|phenology=Cones maturing in early summer, but misshapen spores not shed.
 
|habitat=Ditches, stream banks, wet meadows
 
|habitat=Ditches, stream banks, wet meadows
 
|elevation=0–1000 m
 
|elevation=0–1000 m
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|basionyms=
 
|basionyms=
 
|family=Equisetaceae
 
|family=Equisetaceae
 +
|phenology=Cones maturing in early summer, but misshapen spores not shed.
 
|habitat=Ditches, stream banks, wet meadows
 
|habitat=Ditches, stream banks, wet meadows
 
|elevation=0–1000 m
 
|elevation=0–1000 m
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|publication year=1845
 
|publication year=1845
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_760.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_760.xml
 
|genus=Equisetum
 
|genus=Equisetum
 
|subgenus=Equisetum subg. Hippochaete
 
|subgenus=Equisetum subg. Hippochaete
 
|species=Equisetum ×litorale
 
|species=Equisetum ×litorale
|branch architecture=solid
 
|branch orientation=ascending;spreading
 
|center architecture=hollow
 
|center count=2/3;4/5
 
|distal whorl length or size=longer
 
|internode length or size=longer
 
|internode variability=equal
 
|ridge count=4;5
 
|sheath length=3.5mm;8mm
 
|sheath shape=elongate
 
|sheath tooth shape=attenuate
 
|sheath width=2.5mm;6mm
 
|stem architecture=unbranched;branched;monomorphic
 
|stem coloration=green
 
|stem location=aerial
 
|stem some measurement=2cm;70cm
 
|tooth coloration=dark
 
|tooth count=7;14
 
|tooth size or width=narrow
 
|tooth some measurement=1mm;3mm
 
|valley shape=channeled
 
 
}}<!--
 
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-->[[Category:Treatment]][[Category:Equisetum subg. Hippochaete]]
 
-->[[Category:Treatment]][[Category:Equisetum subg. Hippochaete]]

Revision as of 14:27, 27 July 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

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.

Lower Taxa

None.
... more about "Equisetum ×litorale"
Richard L. Hauke +
Kühlewein +
Undefined subg. Hippochaete +
Prêle littorale +
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. +  and Wyo. +
0–1000 m +
Ditches, stream banks, wet meadows +
Cones maturing in early summer, but misshapen spores not shed. +
Beitr. Pflanzenk. Russ. Reiches +
Equisetum ×litorale +
Equisetum subg. Hippochaete +
species +