Cycads are seed plants with a stout, woody, and usually unbranched cylindrical trunk, and a crown of large, hard, stiff, evergreen and (usually) pinnate leaves.

Cycad, any of the palmlike woody gymnospermous plants that constitute the order Cycadales. The order consists of three extant families, which contain about 10 genera and about 310 species. Some …

Cycads are an ancient group of vascular plants that were once a prominent component of the world’s flora. The oldest cycad fossils date to the early Permian (280 million years ago) or late Carboniferous …

Cycads are an ancient group of seed plants with a crown of large compound leaves and a stout trunk. They are a minor component of the flora in tropical and subtropical regions today, but during the …

Cycads (division Cycadophyta) are an ancient group of seed plants characterized by a large crown of compound leaves and a stout, erect trunk up to seven meters (23 feet) high. They are evergreen, …

Although many cycads resemble palms, they are actually more closely related to conifers, which becomes more obvious when they produce their cones. Unlike conifers, however, which usually have …

There are more than 200 cycad species. Cycads are often mistaken for palms, but are in fact only distantly related. Misleading common names like “sago palm” further the confusion. Their tropical …

Cycads are the survivors of a plant group that was abundant in the Mesozoic flora — the age of dinosaurs — and reached its zenith in the Jurassic Period, some 160 million years ago.

In contrast to palms (which are flowering plants), cycads do not procreate through flowers and fruit; rather they produce pollen and seed in cones. Importantly, cycads are dioecious, or unisexual; …

Oct 29, 2025 · Cycads originated in Pangaea during the early Permian and reached their greatest abundance and diversity during the Jurassic, declining sharply during the Cretaceous radiation of the …