Question: In what region would you probably find both Beaucarnea and Cybistax?

full_context: Document 1: Calliandra calothyrsus: Calliandra calothyrsus is a small leguminous tree or large shrub in the Fabaceae family. It is native to the tropics of Central America where its typical habitat is wet tropical forests or seasonally dry forests with a dry season of four to seven months, when it may become deciduous. This tree grows to about 6 m and has pinnate compound leaves and flowers with a boss of prominent reddish-purple stamens. It is not very drought-tolerant and the above-ground parts are short-lived but the roots regularly resprout.
Document 2: Brya ebenus: Brya ebenus, also known as espino de sabana, granadillo, cocus wood, cocuswood, and coccuswood, is a species of flowering tree in the pea family, Fabaceae, that is native to the Caribbean islands of Cuba and Jamaica. Horticulturally it is known as the Jamaica(n) rain tree.
Document 3: Beschorneria: Beschorneria is a genus of succulent plants belonging to the family Asparagaceae, subfamily Agavoideae, native to semi-arid areas of Mexico and Central America. They are generally large evergreen perennials forming clumps of grey-green leaves, with tall flower-spikes to 1.5 m . Marginally hardy, they may require winter protection in areas subject to frost.
Document 4: Ruscus: Ruscus is a genus of six species of flowering plants, native to western and southern Europe (north to southern England), Macaronesia, northwest Africa, and southwestern Asia east to the Caucasus. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae). Like many lilioid monocots, it was formerly classified in the family Liliaceae.
Document 5: Cibotium: Cibotium (from the Greek "kibootion", meaning chest or box) is a genus of 11 species of tropical tree fern—subject to much confusion and revision—distributed fairly narrowly in Hawaiʻ i (four species, plus a hybrid, collectively known as hāpuʻ u), Southeast Asia (five species), and the cloud forests of Central America and Mexico (two species). Some of the species currently listed in the literature seem to be synonyms or local-variant subspecies. "Cibotium glaucum", from Hawaiʻ i, is the most frequently encountered "Cibotium" species in the horticultural trade, together with its sibling species "Cibotium chamissoi" and the potentially huge "Cibotium menziesii". The remaining Hawaiian "Cibotium", "C. nealiae", is a 1 m dwarf variety, restricted to the island of Kauaʻ i that is never seen in the horticultural trade. Precise identification of "Cibotium" species is difficult, although all have shiny and rather waxy fronds when viewed from above, with varying degrees of powdery-pale blush when seen from underneath. The natural habitat of "Cibotium" is among the dripping trees and stream gullies of the rainforests on Hawaiʻ i's windward volcanic slopes.
Document 6: Beaucarnea: Beaucarnea is a genus of flowering plants native to Mexico and Central America. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae). "Beaucarnea" is sometimes treated as a synonym of the genus "Nolina", with the species being then transferred to that genus. However, recent research shows that "Beaucarnea" should treated as an independent genus.
Document 7: Cydista: Cydista is a genus that consists of more than twenty species of lowland, showy, evergreen, ornamental shrubs and woody vines, ranging from central and southern Mexico to Paraguay and eastern Brazil. The genus is characterized by the lack of a nectariferous disk and is associated with the multiple-bang flowering syndrome. All species are lianas with clusters of funnelform flowers, bloomig twice a year in spring and fall. The flowers start of purple and change to a lighter shade of lavender with age, then fading to almost white, followed by linear oblong fruits and winged seeds. The plants are multi-stemmed with opposite, oval, glossy, dark-green leaves and 2 leaflets, and climb by tendrils arise from the leaf axils. Leaves smell like garlic when crushed.
Document 8: Brahea: Brahea is a genus of palms in the Arecaceae family. They are commonly referred to as Hesper Palms and are endemic to Mexico and Central America. All Hesper Palms have large, fan-shaped leaves.
Document 9: Nolina nelsonii: Nolina nelsonii (Blue Nolina or Nelson's Bear Grass), often misspelled "Nolina nelsoni", is a flowering plant in the genus Nolina. The species was first described in 1906; in its genus, it is morphologically most similar to Nolina parryi. This extremely drought-tolerant plant is native to the deserts and montane regions in the State of Tamaulipas in northern/northeastern Mexico. It is known to be cold-hardy to at least -12 °C. It develops a trunk mesuring from one to several meters high, making it an arborescent member of its genus. The bluish-green leaves, with finely toothed margins, are borne in dense rosettes, each with up to several hundred stiff linear (narrow) leaves up to 70 centimeters long. It is dioecious; upon reaching sexual maturity, its white-flowered inflorescence appears in Spring. The fruit capsules are around 80 mm in length, containing light-brown, spherical to oblong seeds 2–3 mm in diameter. After blooming, the plant's main trunk dies and multiple lateral trunks emerge to take its place.
Document 10: Calibanus: Calibanus is a genus of two species of flowering plants, both evergreen succulents from dry areas of northeastern Mexico. The APG III classification system places it in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae. ) It was formerly included in the Agavaceae (now Agavoideae) but is now separated from them, for it is polycarpic and dioecious. Its name refers to the monster Caliban, an antagonist in Shakespeare's "The Tempest".
Document 11: Cybistax: Cybistax is a genus containing a single species, Cybistax antisyphilitica (Mart.) Mart., a flowering and economic timber tree from tropical Central and South America. These semi-deciduous plants have greyish green, opposite, palmately compounded leaves and close-grained, light-colored wood good for furniture. In early spring, the plants bear showy clusters of bright yellow, funnel-shaped flowers 2-2.5 cm wide at branch ends. Pods are 25–50 cm long, straight, pendulous and brown with thin, flat seeds inside. The seeds have papery wings.
Document 12: Bessera: Bessera is a genus of Mexican plants in the cluster lily subfamily within the asparagus family. It is a small genus of 3 known species of mostly herbaceous flowering plants with corms. They have flowers with petals and petaloid sepals (tepals) with compound pistils.
Document 13: Nolina microcarpa: Nolina microcarpa is a species of flowering plant in the asparagus family known by the common names sacahuista and palmilla. Like other species of "Nolina", it may be called beargrass. It is native to northern Mexico and the southwestern United States in Arizona and New Mexico. It does occur in the southwestern corner of Utah, where it has a limited distribution on Navajo Sandstone, but reports of it occurring in Texas may be in error.
Document 14: Centrolobium: Centrolobium is a Neotropical genus of legume in the Fabaceae family, assigned to the informal monophyletic "Pterocarpus" clade of the Dalbergieae. The genus comprises mostly large trees to 30 m tall, characterised by an abundance of orange peltate glands that cover most parts of the plant, and fruits that are large winged samaras to 30 cm long with a spiny basal seed chamber.
Document 15: Cyrtostachys: Cyrtostachys is a genus of flowering plant in the Arecaceae (palms) family. Its species are found in southeast Asia, New Guinea, and in some of the and island habitats of the Oceania ecozone.
ground_truth: Central America