- Common name(s): Common Comfrey, True Comfrey, Boneset, Knitbone
- Blooming time: late spring to summer
- Blooming colors: pink, purple, white
- Height: 30 to 100 cm
- Origin: Asia, Europe
- Hardiness zone (USDA): Z5 – to -23 °C
- Family: Boraginaceae
Symphytum officinale
Omphalodes verna
Phacelia tanacetifolia