Reference: Brummitt, R.K. (2001) TDGW - World Geographical Scheme for Recording Plant Distributions, 2nd Edition
- Continental: Northern America
- Regional: Mexico
- Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest.
- Regional: Southeastern U.S.A.
- Continental: Southern America
- Regional: Brazil
- Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central.
- Regional: Caribbean
- Bahamas, Cayman Islands, Cuba, Dominican Republic, Haiti, Jamaica, Leeward Islands, Puerto Rico, Trinidad-Tobago, Venezuelan Antilles, Windward Islands.
- Regional: Central America
- Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panamá.
- Regional: Northern South America
- French Guiana, Guyana, Suriname, Venezuela.
- Regional: Southern South America
- Regional: Western South America
- Bolivia, Colombia, Ecuador, Peru.
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