PLATE CLIV.
ECHIUM ARGENTEUM.
Silvery-leaved Viper’s-Bugloss.
CLASS V. ORDER I.
PENTANDRIA MONOGYNIA. Five Chives. One Pointal.
ESSENTIAL GENERIC CHARACTER.
Corolla irregularis, fauce nudâ.
Blossom irregular, mouth naked.
See Echium grandiflorum, Pl. XX. Vol. I.
SPECIFIC CHARACTER.