Calibanus hookeri

One of only two species in its genus, Calibanus hookeri is a member of the family Asparagaceae native to Tamaulipas in Mexico, which can easily be mistaken in the wild for a boulder overgrown with grass tufts.

Description
Calibanus hookeri forms a large caudex which has been known to reach diameters and heights of up to 2.6 feet. Atop the caudex sprouts extremely narrow greyish-green leaves that look like grass. Each leaf rosette grown from the caudex is believed to be a vegetatively produced independent plant which dies after fruiting to be replaced by a new one. Flower stalks grow to 2-3.3 feet tall with many branchings and bear tiny, greenish white flowers.

Cultivation
Calibanus hookeri likes full sunlight and well drained and fertilized soils. Should be grown in a large and shallow container and should be kept outside in summer.