Digitalis from purple to pink, white, and yellow. The best-known species is the common foxglove, "Digitalis purpurea". This biennial plant is often grown as an ornamental plant due to its vivid flowers which range in colour from various purple tints through pink, light grey, and purely white. The flowers can also possess various marks and spottings. The first year of growth produces only the stem with its long, basal leaves. During the second year of the plant's life, a long, leafy stem from 50 to 255 centimetres tall grows atop the roots of healthy plants. Other garden-worthy species include "D. ferruginea",
Orazio Comes Orazio Comes Orazio Comes (11 November 1848 – 13 October 1917) was an Italian botanist. From 1906 to 1917 he directed the Agricultural Higher Institute of Portici, in which, thanks to Vincenzo de Cesati, he begun teaching since 1877 as assistant of Nicola Pedicino for the chair of botany, to whom he succeeded in 1880. In his works he studied the physiology and plant pathology of Neapolitan mushrooms and agricultural plants, such as beans and tobacco. From 1881, Comes began to deal with the cultivation of tobacco to improve industrial production and, starting from 1891, he emphasized the study and