The crown oak was a plant native to the planet Sphinx in the Manticore System. Treecats called it golden leaf.
A deciduous hardwood tree which looked much like a big white oak but with large, arrowhead-shaped leaves, it shed its leaves twice in the course of a Sphinxian year, once shortly after the end of spring and again at the end of autumn. The summer-autumn foliage turns a bright, deep gold, rather like that of Earth maples, before falling. The spring-summer foliage changed colors before it fell.
The average height of a mature crown oak is 80 meters (263 feet), although some as tall as 102 meters (335 feet) have been reported. (SK2, SK3)