Details of...
Scientific Name: Equisetum spp.
Pronunciation: eck-wih-SEE-tum
Common Name: horsetail
Family Name: Equisetaceae
Plant Type: Weed (horticultural), Herbaceous perennial
Key ID Features: An erect spore bearing vascular plant with whorls of narrow jointed branches at nodes; leaves reduced to crown-like whorl at nodes; strobili formed on tips or on separate fertile shoots connected by rhizomes.
Course(s): not used (on campus)

Habit: Upright
Form: Oval - vertical
Texture: Fine
Mature Size:
Height:1.3 - 2.0m
Spread:0.1 - 0.3m
Growth Rate:Fast
Origin: B.C. east of Cascades, B.C. west of Cascades, Canada - central, Canada - eastern, U.S. - central, U.S. - northeast, U.S. - northwest, U.S. - southwest
Hardiness Rating: Zone 5: (-29 to -23 C)
Exposure: Filtered shade, Full sun, Part sun/part shade
Soil/ Growing Medium:
Landscape Uses: Floristry
Additional Info: Google. Species shown include E. fluviatile.
Leaf Morphology: Glossary
Form: Simple
Arrangement: Whorled
Texture/ Venation: Leathery
Surfaces: Glabrous
Colour in Summer: Nearly Black, Green
Leaf(let) Terms:
Shapes: Linear, Other
Apices: Acuminate
Bases: Sheathing, Truncate
Margins: Entire
Additional Info: actually these are branches and are absent in some species; the "leaves" are microphylls at the jointed nodes

Inflorescence Type: Spike-like, n/a
Flower Morphology:
Colour (petals): No flowers, Brown
Flower Time at Peak:

Fruit Type: Sporangium (spores)
Fruit Colour: Brown
Fruiting Time: Apr, May, Jun, Jul, Aug, Sep
Additional Info: Showy, timing depends on species

Bark or Stem Colour: Green
Organ Modifications: Rhizomes

Pest Susceptibility: Pest resistant, Disease resistant
(PHA) PolyHouse and Area
(WDY) WeeDY location
Location Map

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