Pagina 54 - Flora of the Southern Carnic Alps

54
163
Stems > 6 mm thick,
with 10-30 shallow
grooves. Sheath with
10-20 teeth
Equisetum
fluviatile L.
163
Stems < 6 mm thick,
with 6-16 (-20)
grooves. Sheath with
5-8 teeth
Equisetum
palustre L.
164 Leaves opposite 165
164
Leaves alternate, all
basal, or arranged in
whorls
418
165
Leaves not entire
(compound or divided
by more than half of
the blade)
166
165 Leaves entire, at most
weakly lobed 195
166 Leaves trifoliate (with
3 leaflets only) 167
166
Leaves not trifoliate
(with more than 3
leaflets)
172