Question: Which genus of plants is native to South and Central America, Onoclea or Phaedranassa?
Context: Gnamptogenys triangularis is a Neotropical species of ants in the subfamily Ectatomminae.  Native to the forests of South and Central America, "G. triangularis" is a predatory ant that feeds on millipedes.  In its native range, this species is known from Buenos Aires, Argentina in the south to Costa Rica in the north, with records from eight countries in South America, and two countries of Central America.  The first records of "G. triangularis" outside its native range came from Florida beginning in 1985 and Alabama in 1996. Central America (Spanish: "América Central" or "Centroamérica" ) is the southernmost, isthmian portion of the North American continent, which connects with the South American continent on the southeast.  Central America is bordered by Mexico to the north, Colombia to the southeast, the Caribbean Sea to the east, and the Pacific Ocean to the west.  Central America consists of seven countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, and Panama.  The combined population of Central America is between 41,739,000 (2009 estimate) and 42,688,190 (2012 estimate). Colpothrinax is a genus of palms native to Central America and the Caribbean.  "Colpothrinax aphanopetala" is found in southern Central America (from southeast Nicaragua to Panama), while "Colpothrinax cookii" is found in northern Central America (from Belize to Honduras).  The third species, "Colpothrinax wrightii", is endemic to southwest Cuba including the Isle of Youth. Sudamerlycaste is a genus of flowering plants in the Orchidaceae family.  It consists of approximately 45 species.  The genus was split off from "Lycaste" in 2002 by Fredy Archila.  Species in "Lycaste" that were endemic to South America and the Caribbean Islands were placed into the new genus "Sudamerlycaste" and those found in Mexico and Central America stayed in "Lycaste".  As a result of this change most of the species previously found in the "Lycaste" section "Fimbriatae" were then moved to the genus "Sudamerlycaste".  Species are either epiphytes or terrestrial.  In 2003 Henry Oakeley and Angela Ryan published the genus name "Ida" to accommodate South American and Caribbean plants previously placed in "Lycaste".  Their description included the type species of "Sudamerlycaste", "Lycaste andreettae".  This renders "Ida" an illegitimate name. Phaedranassa is a genus of South American and Central American plants in Amaryllis family, subfamily Amaryllidoideae. Nops is a genus of medium-sized caponiid spider native to South America, Central America, and the Caribbean islands.  The genus currently counts 27 extant species plus one fossil in Dominican amber, but probably the real number of extant species is greater.  "Nops" have a great richness on the Caribbean islands (14 species).  Even species of Central America (4) and South America (15) are located in high proportion toward the area of the Caribbean Sea.  Most species of South America are known only from the coast of Colombia and Venezuela, including the islands of Aruba, Curaçao, Bonaire and Trinidad.  The genus is not revised yet, but apparently have a Neotropical distribution. Onoclea is a genus of plants in the Onocleaceae family, native to moist habitats in eastern Asia and eastern North America.  They are deciduous ferns with sterile fronds arising from creeping rhizomes in spring, dying down at first frost.  Fertile fronds appear in late summer.  Depending on the authority, the genus contains one to five species. Triphora is a genus of flowering plants from the orchid family, Orchidaceae.  It is native to South America, Central America, southern Mexico, the West Indies and eastern North America as far north as Ontario.  Noddingcaps is a common name for plants in this genus. This is a list of the native wild mammal species recorded in Central America.  Central America is usually defined as the southernmost extension of North America; however, from a biological standpoint it is useful to view it as a separate region of the Americas.  Central America is distinct from the remainder of North America in being a tropical region, part of the Neotropic ecozone, whose flora and fauna display a strong South American influence.  The rest of North America is mostly subtropical or temperate, belongs to the Nearctic ecozone, and has many fewer species of South American origin. Purdiaea is a genus of flowering plants in the family Clethraceae described as a genus in 1846.  It is one of two genera in this family, and was formerly classified in the related family Cyrillaceae.  "Purdiaea" is native to tropical regions of the Caribbean (with the highest species diversity on Cuba), Central America and northern South America, further south than the related genus "Clethra", the only other genus of this family.
Answer: Phaedranassa