Оңтүстік Африка сарғалды ағашы (Podocarpus latifolius)

Species of conifer

Podocarpus latifolius (real yellowwood, broad leaved yellowwood, or South African yellowwood, , , , ) is a large evergreen tree up to 35 m high and 3 m trunk diameter, in the conifer family Podocarpaceae; it is the type species of the genus Podocarpus. The real yellowwood has been declared the national tree of South Africa and is protected there.

It is a slow growing tree but exceptionally long lived, and is increasingly grown as an ornamental feature in South African gardens. The unusual texture of the foliage is a reason for its growing popularity. The bright edible berries attract birds, which spread the seed. The wood is hard, similar to yew wood, used for furniture, panelling, etc. Due to past over exploitation, little is now cut.

Podocarpus latifolius is closely related to Podocarpus milanjianus. Whether they are a single or two separate species is not settled. Some authorities treat the South African populations as Podocarpus latifolius, and those elsewhere in Africa as Podocarpus milanjianus. Others treat them as a single species, Podocarpus latifolius. A 2020 study sampled DNA from Podocarpus latifolius and Podocarpus milanjianus trees, gathered from 88 sites across Africa. They concluded that all populations sampled constituted a single species: "As South African samples (P. latifolius) did not form a clade separated from the other clades (P. milanjianus), we confirm that the two taxa can be considered as synonyms." The authors concluded that the species originated in East Africa. The western populations, in the highlands of Cameroon and Nigeria and in the Angolan highlands, diverged from the other populations around 300,000 years ago, and the species expanded to its current distribution pattern about 200,000 years ago.