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30
100
Leaves of young
shoots with 3 leaflets
or palmate
101
101
Drupelets 2-20.
Stipules lanceolate, not
thread-like
Rubus caesius L.
101
Drupelets usually more
than 20. Stipules
linear, thread-like
102
102
Stems of the current
year with more or less
abundant glandular
hairs. Prickles thin,
acicular
Rubus hirtus Waldst.
& Kit.
102
Stems of the current
year without glandular
hairs (sometimes with
sessile glands).
Prickles thick, curved
103
103
Stems of the current
year erect to curved,
usually hairless.
Inflorescences simple
or branched
Rubus sulcatus Vest
103
Stems of the current
year arched,
sometimes rooting at
the tip. Inflorescence
branched, the lower
branches bearing 2-5-
flowers
Rubus fruticosus s.l.