Do Macropidia and Crescentia only produce flowers?
Crescentia Crescentia (calabash tree, huingo, krabasi, or kalebas) is a genus of six species of flowering plants in the family Bignoniaceae, native to southern North America, the Caribbean, Central America and northern South America. The species are moderate-size trees growing to 10 m tall, and producing large spherical fruits, with a thin, hard shell and soft pulp, up to 25 cm in diameter.
Platydesma Platydesma is a genus of plants in family Rutaceae. Evidence from 2009 indicates that "Platydesma" is nested within the related genus "Melicope" and is sister to all Hawaiian "Melicope" species. And while "Melicope" species are dioecious (individual plants only bear either male or female flowers), the flowers of "Platydesma" are hermaphroditic, suggesting a rare evolutionary reversion away from dioecy in "Platydesma". While they have no medicinal purposes; the board of water supply states that they can be used for a shrub.