Verbascum pulverulentum - Hoary Mullein
Spanish: Gordolobo
Biennial plant up to 1,5 m. tall. Stems erect , covered with a dense downiness,
which makes the plant look like white velvet, coming off easily when rubbed.
Oblong leaves. Flowers from 1.8 to 2.5 cm, yellow, in pyramidal panicles with
five stamens.
See: http://www.botanical-online.com/fotosverbascumpulverulentum.htm