Possibly from the Latin barba, a beard, many species have a hairy or downy look (Scrophulariaceae). Mullein. A genus of 300 species of hardy herbaceous plants, mostly biennials or short-lived perennials, from temperate parts of Europe and Asia. Species cultivated Cultivation Verbascums grow easily in sunny positions and ordinary or chalky soil. The species is propagated by seed sown in […]