104
330
Leaves tough, < 2 cm
long, the basal ones
arranged in a rosette.
Petals shorter than
sepals. Styles 4
Sagina
procumbens L.
subsp. procumbens
331
Petals fused, at least at
the base
332
331
Petals free
333
332
Calyx present.
Inflorescences
arranged in leaf-axils.
Stamens 5
Vincetoxicum
hirundinaria
Medik. subsp.
hirundinaria
332
Calyx absent.
Inflorescences
terminal. Stamens 3
Valeriana saxatilis
L.
333
Petals with an entire
apex
334
333
Petals 2-lobed, toothed
or fringed
345