Difference between revisions of "Equisetum sylvaticum"
Sp. Pl. 2: 1061. 1753.
imported>Volume Importer |
imported>Volume Importer |
||
| Line 46: | Line 46: | ||
|publication year=1753 | |publication year=1753 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_639.xml |
|genus=Equisetum | |genus=Equisetum | ||
|subgenus=Equisetum subg. Hippochaete | |subgenus=Equisetum subg. Hippochaete | ||
Revision as of 20:24, 5 November 2020
Aerial stems dimorphic; vegetative stems brownish to green, branched, 25–70 cm; hollow center 1/6–1/3 stem diam. Sheaths squarish in face view, 3–6 × 2.5–6 mm; teeth reddish, 8–18, papery, 3–10 mm, coherent in 3–4 large groups. Branches in regular whorls, delicate, arching, branched, solid; ridges 3–4; valleys channeled; 1st internode of each branch longer than subtending stem sheath; sheath teeth attenuate. Fertile stems brown, with stomates, initially unbranched, persisting and becoming branched and green after spore discharge. 2n =216.
Phenology: Cones maturing in late spring.
Habitat: Moist forests
Elevation: 0–2800 m
Distribution
Greenland, St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Conn., Del., Idaho, Iowa, Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.Dak., Ohio, Pa., R.I., S.Dak., Vt., Va., Wash., W.Va., Wis., Europe, n Asia to ne China, Japan in Hokkaido.
Discussion
Selected References
None.