Erysimum bicolor ssp. caldeiraoense ssp. nov. ined.

100 (180)cm, tall, evergreen shrub with a woody base and narrow, ascending branches. Native to moist, partially shaded spots in the laurel forest region of Madeira, very rare in its habitat (e.g. Caldeirao Verde at some 920m). Originally included in Erysimum bicolor from the Canaries, yet as it is quite different in various aspects, it merits a species rank. Among others it is a hexaploid species. Makes strongly serrated, long lanceolate leaves and white to purplish-pink flowers. For any humus rich, slightly moist soil in a sunny spot. Keep slightly drier and always sunny in winter. IV-VI.
20 seeds per package.