cardboard cycad

The plant has a short, sometimes subterranean trunk up to 20 cm broad and high, usually marked with scars from old leaf bases. It grows very slowly when young, but its growth accelerates after the trunk matures. Including the leaves, the whole plant typically grows to 1.3 m tall with a width of about 2 m.

The leaves radiate from the center of the trunk; each leaf is 50–150 cm long with a petiole 15–30 cm long, and 6-12 pairs of extremely stiff, pubescent (fuzzy) green leaflets. These leaflets grow 8–20 cm long and 3–5 cm wide. Occasionally, the leaflets are toothed toward the tips. The circular crowns of leaves resemble fern or palm fronds. They are erect in full sun, horizontal in shade.

This plant produces a rusty-brown cone in the center of the female plant. It's a dioecious species, meaning that the egg-shaped female (seed-producing) cones and smaller male (pollen-producing) cone clusters are produced on separate plants. Pollination is done by certain insects, namely the cycad weevil Rhopalotria mollis.

This plant is easy to care for and grows best in moist, well-drained soil. They do well in full sun or shade, but not in constant deep shade. They are fairly salt- and drought-tolerant but should be protected from extreme cold. They should occasionally be fed with palm food. After Cycas revoluta, this is probably the most popular cycad species in cultivation. In temperate regions, it is commonly grown as a houseplant and, in subtropical areas, as a container or bedding plant outdoors.