The stems of the broccolis are usually taller than those of cauliflowers, the leaves more numerous, larger, stiffer, but more undulated, more rounded at the apex, and more frequently having a distinct stem or petiole.
"The Cauliflower"
A. A. Crozier
Common petiole, 2 stipules at the base.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Common petiole with 2 stipules at the base.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera