The radiate flowerheads of Euryops speciosissimus grow solitary on long, leafless pedicels from leaf axils. They may be as long as 40 cm.
The ray florets are long and narrow, sparsely arranged in one whorl around yellow discs. The involucral bracts form a deep cup, broad at the base, below the corolla. Flowerheads are about 9 cm in diameter, among the more spectacular ones of the genus.
Flowering occurs from late winter through spring, although the season is sometimes prolonged. Speciosissimus means very spectacular or the showiest of all (Manning, 2009; www.plantzafrica.com).