Question: Which of the plants covers a larger part of the world, Calibrachoa or Astilboides?
Context: Although Native Americans in the United States have resided in what is now Iowa for 13,000 years, the written history of Iowa begins with the proto-historic accounts of Native Americans by explorers such as Marquette and Joliet in the 1680s.  Until the early 19th century Iowa was occupied exclusively by Indians and a few European traders, with loose political control by France and Spain.  Iowa became part of the United States of America after the Louisiana Purchase in 1803, but uncontested U.S. control over what is now Iowa occurred only after the War of 1812 and after a series of treaties eliminated Indian claims on the state.  Beginning in the 1830s Euro-American settlements appeared in the Iowa Territory, U.S. statehood was acquired in 1846, and by 1860 almost the entire state was settled and farmed by Euro-Americans.  Subsistence frontier farming was replaced by commodity farming after the construction of railroad networks in the 1850s and 1860s.  Iowa contributed a disproportionate amount of young men to fight in the American Civil War.  Afterwards they returned to help transform Iowa into an agricultural powerhouse, supplying food to the rest of the nation.  The industrialization of agriculture and the emergence of centralized commodities markets in the late 19th and 20th centuries led to a shift towards larger farms and the decline of the small family farm; this was exacerbated during the Great Depression.  Industrial production became a larger part of the economy during World War II and the postwar economic boom.  In the 1970s and 1980s a series of economic shocks, including the oil crisis, the 1980s farm crisis, and the Early 1980s recession led to the collapse of commodities prices, a decline in rural and state population, and rural flight.  Iowa's economy rebounded in the 1990s, emerging as a modern mixed economy dominated by industry, commerce, and finance, in which agriculture is a comparatively small component.  Iowa's population is now predominately urban and has been increasing since the 1990s at a faster rate than the U.S. as a whole, although rural flight continues to be a problem. Calibrachoa (ca-libra-KO-a) is a genus of plants in the Solanaceae (nightshade) family.  They are evergreen short-lived perennials and subshrubs with a sprawling habit, with small petunia-type flowers.  They are found across much the same region of South America as petunias, from southern Brazil across to Peru and Chile, inhabiting scrub and open grassland. Kadrina Parish (Estonian: "Kadrina vald" ) is a rural municipality in Lääne-Viru County, northern Estonia.  It covers an area of 329.26 km² (10% of the total area of the county) and has a population of 5,156 (as of January 1, 2004).  The parish has had its current borders since 2005, when Saksi Parish was dissolved and Kiku, Pariisi and Salda villages were merged to Kadrina Parish, the larger part of Saksi Parish was added to Tapa Parish. The Sakumo Ramsar Site also known as the Sakumo Lagoon is a wetland of international importance.  It covers an area of 1340 ha and is situated along the coastal road between Accra and Tema in the Greater Accra Region of Ghana.  It is about 3 km west of Tema.  The lagoon has fish which is taken during the rainy seasons.  During the dry season from August to March a larger part of the lagoon dries up.  There is general cultivation of vegetables such as tomatoes,onion, spinach and also cassava on the wetlands around the lagoon.  The area is encroached upon by cattle which graze in the dry season and land developers who build very close to the site which is a government properly and should not be used by any developer. The Little Western Wall, also known as HaKotel HaKatan (or just Kotel Katan) and the Small Kotel, (Hebrew: הכותל הקטן‎ ‎ ), is a Jewish religious site located in the Muslim Quarter of the Old City of Jerusalem near the Iron Gate to the Temple Mount.  The wall itself dates from the Second Temple period, (516 BCE – 70 CE).  It is the continuation of the larger part of the Western Wall and almost exactly faces the Holy of Holies.  HaKotel HaKatan is not as well-known and not as crowded as the larger part of the Western Wall.  This section of the wall is of deep spiritual significance because of its close proximity to the Holy of Holies.  However, it is not the closest location to the Holy of Holies, as there is a location in the Western Wall Tunnel which directly faces the Holy of Holies. Thracians or Thracian Bulgarians (Bulgarian: Тракийски българи or Тракийци) are a regional, ethnographic group of ethnic Bulgarians, inhabiting or native to Thrace.  Today, the larger part of this population is concentrated in Northern Thrace, but much is spread across the whole of Bulgaria and the diaspora.  Until the beginning of the twentieth century the Thracian Bulgarians lived also in the whole of Thrace, then part of the Ottoman Empire.  After the persecutions during the Preobrazhenie Uprising and the ethnic cleansing, caused to the Bulgarian population in Eastern Thrace after the Second Balkan War, these people were expelled from the area.  After World War I, Bulgaria was required to cede Western Thrace to Greece.  A whole population of Bulgarians in Western Thrace was expelled into Bulgaria-controlled Northern Thrace.  This was followed by a further population exchange between Bulgaria and Greece (under the Treaty of Neuilly-sur-Seine), which radically changed the demographics of the region toward increased ethnic homogenization within the territories each respective country ultimately was awarded.  At this period the Bulgarian Communist Party was compelled by Comintern to accept the formation of a new "Thracian nation" on the base of this people in order to include them in a new separate "Thracian state", as a part of a future Balkan Communist Federation. Sollentuna Hundred (Swedish: "Sollentuna härad" ) was a hundred of Uppland in Sweden.  It encompassed the present-day municipalities of Järfälla, Sollentuna, and Sundbyberg as well as parts of Upplands Väsby Municipality (Eds Parish) and Stockholm (Bromma and Spånga parishes).  All are now part of Stockholm County.  The hundred had three "köpingar"—Sollentuna Köping, Sundbybergs Köping, and Hässelby Villastads Köping—and a number of "municipalsamhällen".  Most of the hundred is now part of the urban area of Stockholm, but the larger part of in the remainder is in Upplands Väsby.  The total area was around 197 km² and the population in 1916 was 20,727 people. Astilboides, a genus of the saxifrage family containing only one species, a herbaceous perennial once included in the genus Rodgersia.  It comes from China and differs from its former relatives mainly in its leaf shape.  It is grown for its huge bright green, circular leaves to 36 in (90 cm) across with the stem attached to the center, and large fluffy racemes of tiny white flowers produced in summer. European Russia is the part of Russia situated in the far West of the country that is considered to be part of Europe.  The other, much larger part of the country, situated to the East, is considered to be part of Asia.  The specific boundaries between continents are largely a matter of geographical convention and different boundaries have been in use, however the eastern boundary of Europe is generally considered to be along the Ural Mountains, the Ural River, the Caucasus Mountains and the Turkish Straits.  Europe is also a subcontinent within Eurasia in geological terms, making the whole of Russia a part of the Eurasian continent. Konopište is a village in the Municipality of Kavadarci, situated in the center of the vinegary region of Tikveš.  It is the home to Gorska Voda, a company that bottles water and soft drink products in the Republic of Macedonia.  Konopište has many geomorphic stone dolls, but they were formed from a different geological process than the Stone Dolls found in Kratovo.  Konopište is in the valley of both the Kožuf and Kozjak mountains and over 20 mountain rivers and streams flow through the area.  Gorska gets its water from the Trnskot spring.  40 species of rare birds live in the area and a larger part of the Kožuf mountain and Tikveš region are part of a natural reserve protecting these endangered animals and their habitats.  There is a colony of bald eagles that resides here, the only known colony in all of Europe.  While many other animals make their habitat in the Konopište, only boar and rabbit hunting are permitted.  Some natural resources and minerals are mined near here and have been since ancient times.  Despite its natural wonder, very few people live in the village itself making the area one of the least populated in all of Macedonia.  The village church St. Stefan has rare life-size icons that date back over 100 years, while the smaller and modern St. Atanas church is a nice edition to the village.  Like many villages, there is a World War II monument to the fallen soldiers from the village.  Roads to the village include from Kavadarci and Demir Kapija.
Answer: Calibrachoa