Leucospermum conocarpodendron is the largest species of the genus Leucospermum, reaching almost tree-like proportions of 5–6 m (16–20 ft) high with a firm trunk that is covered in a thick layer of cork that protects it from most fires. It has greyish or green narrow or broad inverted egg-shaped leaves with three to ten teeth near the tip and large yellow flowerheads, with firm, bent, yellow styles that stick far beyond the rest of the flower and give the impression of a pincushion. It is commonly known as the tree pincushion in English or goudsboom in Afrikaans. They naturally occur near Cape Town, South Africa.

Two subspecies are distinguished. L. conocarpodendron subsp. conocarpodendron, that has greyish leaves because they have a covering of felty hairs. L. conocarpodendron subsp. viridum, has green leaves that lack felty hairs. Flowers can be found between August and December.

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