Difference between revisions of "Equisetum variegatum"
Bot. Taschenb. 60, 447. 1807.
Common names: Variegated scouring rush prêle panachée
Treatment appears in FNA Volume 2.
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Revision as of 20:23, 5 November 2020
Aerial stems persisting more than a year, unbranched, 6–55 cm; lines of stomates single; ridges 3–12. Sheaths green with black apical band, spreading, 1–6 × 1–5 mm; teeth 3–14, not articulate. Cone apex pointed; spores green, spheric. 2n =216.
Distribution
Alta., B.C., Man., N.B., N.W.T., Nfld. and Labr. (Nfld.), Ont., P.E.I., Que., Sask., Yukon, Colo., Conn., Idaho, Ill., Ind., Maine, Mass., Mich., Minn., Mont., N.H., N.Y., Oreg., S.Dak., Utah, Vt., Wash., Wis., Wyo., Europe, Asia.
Discussion
Subspecies 2 (2 in the flora).
Selected References
None.
Key
| 1 | Sheath teeth erect, with prominent white margins. | Equisetum variegatum subsp. variegatum |
| 1 | Sheath teeth incurved, with obscure margins or all black. | Equisetum variegatum subsp. alaskanum |