Ulmus

Ulmus davidiana 'Pygmaea'
Ulmus davidiana 'Pygmaea'

Umbilicus

Umbilicus rupestris

Umbilicus rupestris

(= Umbilicus pendulinus)

Uncinia

Uncinia uncinata
Uncinia uncinata

Urospermum

Urospermum dalechampii
Urospermum dalechampii

Vaccinium