Calathea crotalifera, the rattlesnake plant or rattle shaker or Cascabel, is a species of flowering plant in the family Marantaceae.

[2] It is native to central and southern Mexico, Central America, and tropical South America as far south as Ecuador, and it has been introduced to Hawai'i and Puerto Rico.

[1] A rhizomatous perennial, its banana-like leaves reaching to 3 m (10 ft), it is typically found in wet tropical areas.

[2] The yellow (or sometimes pink) flowers are in spikes up to 16 inches (40 cm) high with each flower subtended by a saucer-like yellow bract.

These flowers, like Canna have a single petaloid stamen bearing a single locule.