Prosthechea cochleata, commonly referred to as the clamshell orchid[1] or cockleshell orchid, is an epiphytic, sympodial New World orchid native to Central America, the West Indies, Colombia, Venezuela, and southern Florida.

[3] Each oblong discoid pseudobulb bears one or two linear nonsucculent leaves.

triandra is an endangered variety that has three anthers and is autogamous, allowing its existence in Florida where no appropriate pollinators appear to be present.

[4] P. cochleata is common in cultivation, and is valued for its uniquely shaped and long-lasting flowers on continually growing racemes.

Several hybrids have been produced with this species, including the popular Prosthechea Green Hornet.