Pulmonarias (Lungworts).

Hardy perennials that require but little attention; may be grown in any common soil, and propagated by division at any time. They flower in April and May. Height, 1 ft.

Related posts:

1. Asclepias (Swallow-Wort).
2. Perennials.
3. Atriplex.
4. Scutellaria.
5. Coronilla.