Cistus ocymoides
Cistus ocymoides, the basil-leaved rock rose, is a species of flowering plant in the family Cistaceae, native to Portugal and Spain in the Iberian Peninsula, and northern Morocco in Northwest Africa. It is an erect evergreen shrub growing to tall by wide, with woolly grey-green leaves and bright yellow flowers in spring. The flowers may have a dark brown blotch at the base of each petal.
In cultivation this plant requires a sandy soil and full sun.