Leucadendron radiatum, also called the Langeberg conebush, is a flowering shrub that belongs to the genus Leucadendron and forms part of the fynbos biome. The plant is endemic to the Western Cape where it occurs on the Langeberg from Grootberg to Kampscheberg.
The shrub grows to a height of 60 cm and flowers from October to December. The plant dies after a fire but the seeds survive. The seeds are stored in a whorl on the female plant and fall to the ground after a fire and may be dispersed by the wind. The plant is unisexual, and there are separate plants with male and female flowers, which are pollinated by the wind. The plant grows mainly on southern slopes at altitudes of 910 - 1,700 m.