At the same time there is often a change in colour in the flowers, which are red in bud, becoming blue as they expand, as in Myosotis, Echium, Symphytum and others.
A departure from the usual regular corolla occurs in Echium and a few allied genera, where it is oblique; in Lycopsis it is also bent.
- Viper's Bugloss (Echium vulgare), about 4 nat.
Echium maritimum, Willd.
Echium pomponium: hardy, 4 ft., rosy-pink.