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12. Equisetum variegatum Schleicher ex F. Weber & D. Mohr, Bot. Taschenb. 60, 447. 1807.
Variegated scouring rush, prêle panachée
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. 2 n =216.
Subspecies 2 (2 in the flora).
Lower Taxa
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