Question: Which is a genus of palms, Zinnia or Butia?
Context: Phytelephas is a genus containing six known species of palms (family Arecaceae), occurring from southern Panama along the Andes to Ecuador, Bolivia, Colombia, northwestern Brazil, and Peru.  They are commonly known as ivory palms, ivory-nut palms or tagua palms; the scientific name "Phytelephas" means "plant elephant".  This and the first two of the common names refer to the very hard white endosperm of their seeds (tagua nuts or jarina seeds), which resembles elephant ivory. Zinnia is a genus of plants of the sunflower tribe within the daisy family.  They are native to scrub and dry grassland in an area stretching from the Southwestern United States to South America, with a centre of diversity in Mexico.  Members of the genus are notable for their solitary long-stemmed flowers that come in a variety of bright colors.  The genus name honors German master botanist Johann Gottfried Zinn (1727–59). Anchylorhynchus is a genus of weevils belonging the family Curculionidae and subfamily Curculioninae.  It currently includes 22 described species distributed from Panama to Argentina.  Members of the genus are pollinators of palms in the genera "Syagrus", "Oenocarpus" and "Butia", with adults living in inflorescences and larvae feeding on developing fruits.  The first instar larvae of "Anchylorhynchus" have an unusual morphology, being specialized on killing other larvae infesting the palm fruits. Anodorhynchus is a genus of large blue macaws from open and semi-open habitats in central and eastern South America.  It includes two endangered species, the hyacinth macaw and Lear's macaw also known as the indigo macaw, and one probably extinct species, the glaucous macaw.  At about 100 cm in length the hyacinth macaw is the longest parrot in the world.  Glaucous and Lear's macaws are exclusively cliff nesters; hyacinth macaws are mostly tree nesters.  The three species mainly feed on the nuts from a few species of palms (notably "Acrocomia aculeata", "Attalea phalerata", "Butia yatay" and "Syagrus coronata"). Zinnia elegans, known as youth-and-age, common zinnia or elegant zinnia, an annual flowering plant of the genus "Zinnia", is one of the best known zinnias.  It is native to Mexico but grown as an ornamental in many places and naturalised in several places including scattered locations in South and Central America, the West Indies, the United States, Australia, and Italy. Butia is a genus of palms in the family Arecaceae, native to South America in Brazil, Paraguay, Uruguay and Argentina.  Most species produce edible fruits, which are sometimes used to make alcoholic beverages.  The name is derived from a Brazilian vernacular word for members of the genus. Copernicia is a genus of palms, native to South America and the Greater Antilles.  Of the known species and nothospecies (hybrids), 22 of the 27 are endemic to Cuba.  They are fan palms (Arecaceae tribe Corypheae), with the leaves with a bare petiole terminating in a rounded fan of numerous leaflets.  The species are small to medium-sized trees growing to 5-30 m tall, typically occurring close to streams and rivers in savanna habitats.Govaerts, R. & Dransfield, J. (2005).  World Checklist of Palms: 1-223.  The Board of Trustees of the Royal Botanic Gardens, Kew. Roystonea is a genus of eleven species of monoecious palms, native to the Caribbean Islands, and the adjacent coasts of Florida and Central and northern South America.  Commonly known as the royal palms, the genus was named for Roy Stone, a U.S. Army engineer.  It contains some of the most recognizable and commonly cultivated palms in tropical and subtropical regions. Borassus (Palmyra palm) is a genus of five species of fan palms, native to tropical regions of Africa, Asia and New Guinea.  These massive palms can grow up to 30 m high and have robust trunks with distinct leaf scars; in some species the trunk develops a distinct swelling just below the crown, though for unknown reasons.  The leaves are fan-shaped, 2–3 m long and with spines along the petiole margins (no spines in "B. heineanus").  The leaf sheath has a distinct cleft at its base, through which the inflorescences appear; old leaf sheaths are retained on the trunk, but fall away with time.  All "Borassus" palms are dioecious, with male and female flowers on separate plants; male flowers are less than 1 cm long and in semi-circular clusters, sandwiched between leathery bracts in pendulous catkins; female flowers are 3–5 cm wide, globe-shaped and solitary, sitting directly on the surface of the inflorescence axis.  The fruits are 15–25 cm wide, roughly spherical and each contain 1-3 large seeds.  Depending on species, fruit color varies from black to brown, yellow or orange; the fibrous pulp is aromatic and sweet to taste.  Each seed is enclosed in a woody endocarp, which protects it when the fruit is consumed by elephants, monkeys and other frugivores.  At germination, the young seedling extends downwards into the soil and only a few leaves are visible above ground; this provides some protection against frequent fires in its savanna habitat; after an indeterminate number of years (the establishment phase), the seedling forms a stem and quickly grows above the savanna vegetation, where it is then less vulnerable to fire. Climbing palms are genera in the family Arecaceae that grow as lianas. "Initially erect, the slender stems seek out trees for support and climb up into the forest canopy by means of recurved hooks and spines growing on the stem, leaves and inflorescences.  In all climbing palms the leaves are pinnate and grow along the stem instead of forming a dense crown.  The stems of climbing palms, more often referred to as canes, are solid in contrast to bamboo poles which are almost always hollow."  "The majority of climbing palms are also clumping palms <nowiki>[and sympodial]</nowiki>, sending out new shoots from <nowiki>[below ground as suckers]</nowiki>."  "About 600 species of palms in <nowiki>[16]</nowiki> genera have a climbing growth habit.  Most noteworthy is the genus "Calamus"--the largest genus in the palm family with approximately 350 described species--source of nearly all commercial rattan."
Answer: Butia