Question: Which genus of plant grows originally in Mexico and Guatemala, Phylica or Weldenia?

Context:
Mendoncia velloziana
Mendoncia velloziana is a plant native to Atlantic Coast restingas vegetation which is an ecosystem of Atlantic Forest biome.
 In addition, this plant grows either in Cerrado vegetation of Brazil.
 This plant grows in following states of Brazil: Bahia, Ceará Minas Gerais Rio de Janeiro, São Paulo, Paraná and Santa Catarina, and it is usually visited by the hummingbirds.
Agave ghiesbreghtii
Agave ghiesbreghtii is an evergreen plant belonging to the family Asparagaceae, subfamily Agavoideae.
 The plant grows in clustering rosettes, up to 75 cm in diameter and 50 cm tall with wide leaves which are guttered on top.
 In spring the plant produces dense greenish brown to purple flowers on the top half of the unbranched spike which measures between 2.5m - 5m tall.
 The species is endemic in Guatemala and the State of Mexico in Mexico.
Weldenia
Weldenia is a monotypic genus of flowering plant in the Commelinaceae family, first described in 1829.
 It has one single species: Weldenia candida, which grows originally in Mexico and Guatemala.
Pinguicula orchidioides
Pinguicula orchidioides is a perennial rosette-forming insectivorous herb native to Mexico and Guatemala.
 A species of butterwort, it forms summer rosettes of flat, succulent leaves up to 5 centimeters (4 in) long, which are covered in mucilagenous (sticky) glands that attract, trap, and digest arthropod prey.
 Nutrients derived from the prey are used to supplement the nutrient-poor substrate that the plant grows in.
 Uniquely among "Pinguicula" species from the Americas, "p. orchidioides" produces gemma-like basal buds which elongate into stolons and serve as a means of asexual reproduction.
 In the winter the plant forms a non-carnivorous rosette of small, fleshy leaves that conserves energy while food and moisture supplies are low.
 Single purple flowers appear between July and September on upright stalks up to 22 centimeters long.
Salvia divinorum
Salvia divinorum (also known as sage of the diviners, ska maría pastora, seer's sage, yerba de la pastora and just salvia) is a psychoactive plant which can induce visions and other spiritual experiences. Its native habitat is in cloud forest in the isolated Sierra Mazateca of Oaxaca, Mexico, where it grows in shady and moist locations.
 The plant grows to over a meter high, has hollow square stems, large leaves, and occasional white flowers with violet calyxes.
 Botanists have not determined whether "Salvia divinorum" is a cultigen or a hybrid; native plants reproduce vegetatively, rarely producing viable seed.
Argemone albiflora
Argemone albiflora, the white prickly poppy, also known as the bluestem prickly poppy or the Texas prickly poppy, is a small erect plant with a decorative white flower with a yellow latex.
 It is deeply rooted with yellow or red stamens.
 The plant is known for the sharp prickles on its stem and leaves.
 The sepals fall off as the flower of this plant grows bigger.
 It grows in the arid regions of the southern Midwest along roadsides and disturbed pieces of land.
 Native Americans have long revered this plant for its medicinal and other uses.
Pinguicula moranensis
Pinguicula moranensis is a perennial rosette-forming insectivorous herb native to Mexico and Guatemala.
 A species of butterwort, it forms summer rosettes of flat, succulent leaves up to 10 centimeters (4 in) long, which are covered in mucilaginous (sticky) glands that attract, trap, and digest arthropod prey.
 Nutrients derived from the prey are used to supplement the nutrient-poor substrate that the plant grows in.
 In the winter the plant forms a non-carnivorous rosette of small, fleshy leaves that conserves energy while food and moisture supplies are low.
 Single pink, purple, or violet flowers appear twice a year on upright stalks up to 25 centimeters long.
Phylica
Phylica is a genus of plants in the family Rhamnaceae.
 It contains about 150 species, the majority of which are restricted to South Africa, where they form part of the "fynbos ".
 A few species occur in other parts of southern Africa, and on islands including Madagascar, the Mascarene Islands, Île Amsterdam, Saint Helena, Tristan da Cunha, and Gough Island.
Salvia chamelaeagnea
Salvia chamelaeagnea is a species of flowering plant in genus "Salvia", known as sages.
 It is endemic to South Africa, where it grows on the western coastline of the Cape of Good Hope.
 It is a shrubby perennial herb up to 6 ft tall and 4 ft wide.
 It bears 3/4 in light violet-blue flowers with pale lower lips and white throats.
 The small, green leaves release a slight medicinal odor when brushed.
 In the wild, the plant grows in sandy soil in streambeds, open fields, and roadsides.
 It is cultivated for gardens.
Chorizanthe watsonii
Chorizanthe watsonii is a species of flowering plant in the buckwheat family known by the common name fivetooth spineflower.
 It is native to the western United States from Washington to the Mojave Desert.
 It grows in many types of plant communities from desert scrub to woodland and sagebrush.
 This small plant grows a woolly erect stem up to about 15 centimeters tall.
 The inflorescence is a cluster of flowers surrounded by five hairy greenish bracts tipped with hooked awns.
 The flower is about 2 millimeters wide and yellow in color.

Answer: Weldenia