Flora of North America species comparison

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Equisetum variegatum

northern scouring-rush, prêle panachée, variegated horsetail, variegated scouring-rush
Sheaths

green with black apical band, spreading, 1–6 × 1–5 mm;

teeth 3–14, not articulate.
Aerial stems

persisting more than a year, unbranched, 6–55 cm;

lines of stomates single;

ridges 3–12.
Cone

apex pointed;

spores green, spheric.
2n

=216.

Equisetum variegatum
Distribution
from FNA
CO; CT; ID; IL; IN; MA; ME; MI; MN; MT; NH; NY; OR; SD; UT; VT; WA; WI; WY; AB; BC; MB; NB; NF; NT; ON; PE; QC; SK; YT; Europe; Asia
[WildflowerSearch map]
[BONAP county map]
Discussion

Subspecies 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Sheath teeth erect, with prominent white margins.
subsp. variegatum
1. Sheath teeth incurved, with obscure margins or all black.
subsp. alaskanum
Source FNA vol. 2.
Parent taxa Equisetaceae > Equisetum > subg. Equisetum
Sibling taxa
E. arvense, E. fluviatile, E. hyemale, E. laevigatum, E. palustre, E. pratense, E. ramosissimum, E. scirpoides, E. sylvaticum, E. telmateia, E. ×ferrissii, E. ×litorale, E. ×mackaii, E. ×nelsonii
Subordinate taxa
E. variegatum subsp. alaskanum, E. variegatum subsp. variegatum
Name authority Schleicher ex F. Weber & D. Mohr: Bot. Taschenb. 60, 447. (1807)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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