Pinus can be shrubs or large, evergreen trees, some species with attractive bark, developing an irregular outline with age and bearing long needle-like leaves in bundles of 2, 3 or 5; conspicuous cones may fall or remain on the tree for years
P. muricata is a medium-sized evergreen tree developing a narrow, flat-topped crown, with stiff, green to dark grey-green needles to 12cm in length, in pairs. Prickly ovoid cones persist on the tree for many years