Cistus lasianthus
Cistus lasianthus, the Lisbon false sun-rose or woolly rock rose, is a species of flowering plant in the family Cistaceae, native to the Iberian Peninsula and Northwest Africa. It is a spreading evergreen shrub growing to tall by wide, with grey-green leaves and bright yellow flowers in spring. The flowers may have a maroon blotch at the base of each petal.
In cultivation this plant requires a sandy soil and full sun.