comfrey flowers

symphytum officinale comfrey boraginaceae common true quaker cultivated boneset knitbone consound slippery-root weed herb herbs plant plants weeds shrub shrubs leaves leaf flowers blossom bloom blossoms blooming flowering white green medisinal outdoors outside outdoor boraginales asterids eudicots angiosperms tracheophytes plantae isolated garden gardening wild botany foliage nature flower long blooms bell-shaped elongated stem hanging front leaf