This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
1. C. Cretica. - A showy robust biennial growing from 4 to 6 feet high. Leaves hairy, lyrate-oblong, and the uppermost ovate or lanceolate, toothed. Flowers in a leafy spike about 1 1/2 inch in diameter, yellow with two brown spots near the centre. The filaments of the shorter stamens bearded; the longer stamens and style declinate. A native of Crete, flowering in Summer.