Verbascum dumulosum (shrubby mullein)
Verbascum dumulosum at Kew Gardens
Verbascum dumulosum P.H.Davis & Hub.-Mor.
shrubby mullein, dwarf mullein
Not evaluated according to IUCN Red List criteria.
Grows among ruins, at an altitude of around 950 m.
About this species
The genus Verbascum is represented by around 228 species in Turkey. Verbascum dumulosum is one of about 176 species found only in Turkey.
Verbascum dumulosum was introduced to cultivation from a collection of seeds made by Peter Davis (professor of plant taxonomy at Edinburgh University) and was widely grown by alpine gardeners in the 1950s and 1960s. In April 1952, the same year this species was described by Davis, it was awarded a Preliminary Commendation by the RHS and an Award of Merit a year later. It began to slip out of cultivation until seed collectors Jim and Jenny Archibald collected and reintroduced seed in the 1980s, and in May 1999 it was awarded a First Class Certificate.
Verbascum dumulosum is closely related to another Turkish endemic, V. pestalozzae, which also comes from Antalya but grows on limestone rocks at around 2,000 m. That is a more dwarf species, with shorter, fewer-flowered racemes (a type of flower cluster that is unbranched and bears flowers along a central axis) and slightly larger, yellow flowers.