Basic HTML Version
43
149
Leaves acute. Petals <3
times as long as wide.
Fruit red when ripe
Sorbus aria (L.)
Crantz s.l.
150
Leaves >15 cm long.
Fruits covered by a
softly spiny husk
(chestnut)
Castanea sativa Mill.
150
Leaves usually <15 cm
long. Fruits not
covered by a spiny
husk
151
151
Flowers without petals.
Fruit dry
152
151
Flowers with petals.
Fruit dry or fleshy
159
152
Leaves <3 cm long.
Small shrubs, <2 m tall
Betula nana L.
152
Leaves >3 cm long.
Trees, or shrubs >2 m
tall
153
153
Leaves with blunt
teeth. Fruits capsules,
arranged in hanging
racemes
Populus tremula L.
153
Leaves with acute
teeth. Fruits different
154