Pagina 339 - Flora of the Southern Carnic Alps

339
1109
Stem hairless. Leaves
hairy at the margin
only. Involucre of
heads c. 4 mm long.
Strap-shaped flowers
much longer than the
tubular flowers
Solidago gigantea
Aiton
1109
Stem hairy, especially
in the upper part.
Leaves densely hairy
on the underside.
Involucre c. 3 mm
long. Strap-shaped
flowers equal to- or
slightly smaller than
the tubular flowers
Solidago
canadensis L.
1110 Fruits without a
pappus of hairs 1111
1110 Fruits a with a pappus
of hairs 1112
1111 Plant < 1.5 m tall.
Heads < 6 cm wide
Buphthalmum
salicifolium L.
subsp. salicifolium
1111
Plant much taller than
1.5 m. Heads > 6 cm
wide
Helianthus
tuberosus L.