Gum Rockrose

Description:

It is a shrub growing 1–2.5 m (3 ft 3 in–8 ft 2 in) tall and wide. The leaves are evergreen, lanceolate, 3–10 cm long and 1–2 cm broad, dark green above and paler underneath. The flowers are 5–8 cm diameter, with 5 papery white petals, usually with a red to maroon spot at the base, surrounding the yellow stamens and pistils. The whole plant is covered with the sticky exudate of fragrant resin.

Habitat:

C. ladanifer is particularly well suited to the Continentalized Mediterranean climate, standing both long summer droughts and cold weather. It is an extremely aggressive plant which has taken over much of former farmland and grasslands in the mountain regions of central Spain and much of southern Portugal. In Spanish it is known as Jara pringosa meaning "sticky shrub". In Portuguese it is known as "esteva". It has been found to have mycorrhizal associations with Boletus edulis, Boletus rhodoxanthus, and Laccaria laccata.