It is native to Trinidad and to South America (Brazil, Venezuela, Colombia, Peru, Suriname, Guyana, French Guiana).

[1] The fragrant plant is pollinated by the typical Euglossini bees (an Eulaema species) These bees are part of what is probably the most complicated pollination scheme presently known in nature.

[2] and has one of the largest orchid blooms, sometimes weighing up to 100 grams (3.5 ounces) [3][4] and measuring up to five inches (12.5 centimeters) in width and height.

[5][6] In Trinidad and Tobago the flower has reached a width and height of six Inches (fifteen centimeters) [7] The color is usually yellow to orange with small freckles along some parts of the flower, mainly inside the "bucket".

Media related to Coryanthes macrantha at Wikimedia Commons