Equisetum scirpoides Michx.
  • Fl. Bor.-Amer.
  • Dwarf scouring rush, prêle faux-scirpe

Cite taxon page as 'WFO (2021): Equisetum scirpoides Michx. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001108923. Accessed on: 17 Oct 2021'

General Information

Plants small. Rhizome erect and creeping, blackish brown, nodes and roots with long yellowish brown trichomes or glabrous. Aerial stems perennial, monomorphic, only branched at lower portion, tufted; main stem inconspicuous, 7- or more ridged; aerial stems irregularly undulate, 10-20 cm tall, ca. 0.6 mm in diam. at middle, solid and without longitudinal canals in center, green, but internodes of lower 1 or 2 nodes castaneous, lustrous; internodes 2-2.8 cm; branch 6-ridged; each ridge with 1 shallow longitudinal groove at middle and 2 edges on sides, each edge with 1 row of tooth-shaped protuberances; sheath blackish brown or upper portion blackish brown, lower portion green; sheath teeth 3(-5), broadly lanceolate, apex long aristate, teeth of middle portion blackish brown, margin light brown, membranous, persistent. Strobilus terete, small, ca. 5 × 1.5 mm, apex with acute tip, sessile. 2n = 216.

  • Provided by: [D].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    Aerial stems persisting more than a year, unbranched, tortuous, 2.5--28 cm; lines of stomates single; ridges 6. Sheaths green proximally, black distally, elliptic in face view, 1--2.5 × 0.75--1.5 mm; teeth 3, dark with white margins, not articulate to sheath. Cone apex pointed; spores green, spheric. 2 n =216.

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 2
    • ]. 

    "Stems all alike, evergreen, prostrate or ascending, often bent or contorted, 0.7–2.5 dm, 0.5–1 mm thick, unbranched or with a few long branches, with 3 primary ridges, the ridges tuberculate, broadly and deeply concave, so that the stem appears 6-ridged; central cavity none, vallecular cavities 3, large; stomates in 2 rows in each principal furrow; sheaths 3–4 mm, flaring, with a broad black band above a usually green base, the 3 scarious-margined teeth each with a subulate, often deciduous tip; cones small, 3–5 mm, subsessile, apiculate. Moist, often swampy places, especially in coniferous woods; circumboreal, in Amer. s. to Conn., N.Y., s. Ill., Io., S.D., and Wash."

  • Provided by: [C].New York Botanical Garden
    • Source: [
    • 3
    • ]. 

    Other Local Names

    Dwarf scouring rush, prêle faux-scirpe

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @ efloras.org
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora Of CHina @ efloras.org
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Missouri Botanical Garden
    World Flora Online consortium
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).
    International Union for Conservation of Nature v.3
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • F See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
    International Union for Conservation of Nature
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • G All Rights Reserved