What company does Rivers of America and Frontierland have in common?
Disney
Frontierland
Frontierland is one of the "themed lands" at the many Disneyland-style parks run by Disney around the world.
 Themed to the American Old West of the 19th century, Frontierlands are home to cowboys and pioneers, saloons, red rock buttes and gold rushes.
 In the book Frontier Town Then And Now, Walt Disney sent a camera crew to Frontier Town(Built in 1952) in North Hudson NY to film a movie that was used as the inspiration for Frontierland.
 From Every instance of Frontierland has a Big Thunder Mountain Railroad, and a stretch of riverfront.
 Other attractions sometimes found in this land include Big Thunder Mountain, the Country Bear Jamboree, Tom Sawyer Island and a steam-powered riverboat.
Rivers of America (Disney)
The Rivers of America is the name of the artificial river found in the Frontierland areas of Magic Kingdom-style Disney theme parks around the world.
 The first river was built in Disneyland when the park opened in 1955.
 It surrounds Tom Sawyer Island, which can be reached by rafts traveling from the Frontierland mainland.
 Additionally, there are other water-based vehicles which are found on the river.
 The sights along the Rivers include a Native American tribe, a burning cabin (though the cabin at Disneyland hasn't been burning for years), and various audio-animatronic wildlife.
Cyperus articulatus
Cyperus articulatus is an aromatic species of sedge known by the common names jointed flatsedge and priprioca.
 It has also been known as Guinea rush or adrue.
 It grows as a perennial herb.
 It grows in water or near it in rivers, streams, lakes, and swamps with a hyperhydrate (emergent aquatic) or possibly tenagophyte (submerged juvenile and terrestrial adult) growth pattern.
 It is widespread across tropical and subtropical regions in Africa, southern Asia, northern Australia, the southeastern United States, the West Indies, and Latin America.
 While it is closely related to highly invasive sedges such as purple nut sedge ("Cyperus rotundus"), priprioca is less prolific and competitive than its relative. Golden Horseshoe Saloon
The Golden Horseshoe Stage (referred to as Pecos Bill's Golden Horseshoe Saloon during construction) opened in 1955 with several other original attractions at Disneyland Park in Anaheim, California.
 Over the years the venue has housed multiple stage shows; it currently shows Laughing Stock and Company seven days a week.
 The "saloon" is located in Frontierland and has a picturesque view of the Rivers of America, New Orleans Square and part of Critter Country. Monongahela and Ohio Steam Boat Company
The Monongahela and Ohio Steam Boat Company was the second company to conduct steamboat commerce on the rivers west of the Allegheny Mountains.
 The company was founded in 1813 under the leadership of Elisha Hunt and based in Brownsville, Pennsylvania.
 Daniel French designed and built the engines and power trains for both the "Despatch", or "Dispatch", and the "Enterprise".
 During the Battle of New Orleans the shareholders of the Monongahela and Ohio Steam Boat Company sent the "Enterprise" to aid the American cause.
 In 1815, the "Enterprise" demonstrated for the first time by her epic 2,200-mile voyage from New Orleans to Brownsville that steamboat commerce was practical on America's western rivers. Pellia epiphylla
Pellia epiphylla (sometimes known as overleaf pellia or common pellia) is a species of thallose liverwort.
 It occurs in North America, Europe, North Africa and parts of Asia.
 It grows in patches in damp, sheltered places on neutral or acidic substrates.
 It is common on the banks of rivers, streams and ditches and also grows in wet woodland, marshes and on wet rocks. Born in Blood and Fire
Born in Blood and Fire: A Concise History of Latin America is a book by John Charles Chasteen, professor of history at the University of North Carolina at Chapel Hill.
 Chasteen covers the history of Latin America from 1492 to the present with an integrative approach that follows a chronological framework.
 The book is divided into chapters that address themes that were common throughout Latin America, such as colonialism, independence, progress, neocolonialism, nationalism, and revolution.
 Other themes that frequently come up in the book include issues of race, ethnicity, and class as well as the formation of republics.
 A timeline is provided at the beginning of the book; and various maps, photographs, and images are used throughout the book.
 "Born in Blood and Fire" was originally published by W. W. Norton and Company in 2001.
 Three other editions have been published since, the most recent in 2016.
 Later editions include updates and expansion of colonialism, nationalism, the Cuban Revolution, and current political and economic issues.
 W. W. Norton and Company published Chasteen’s companion reader entitled "Born in Blood and Fire: Latin American Voices" in 2011.
 This book includes narratives from a variety of sources that illustrate life in Latin America during the last six centuries.
 Many of these excerpts from books, essays, and newspaper articles were translated by Chasteen.
 Other books by the author include "Americanos: Latin America’s Struggle for Independence", "Heroes on Horseback: A Life and Times of the Last Gaucho Caudillos", and "National Rhythms, African Roots: The Deep History of Latin American Popular Dance".
 Chasteen is also known for his translation of Tulio Halperin Donghi’s "The Contemporary History of Latin America". Liberty Square (Magic Kingdom)
Liberty Square is one of six "themed lands" and is exclusive to the Magic Kingdom, a theme park at the Walt Disney World Resort in Lake Buena Vista, Florida.
 Themed after colonial America, replicas of both the Liberty Bell and Liberty Tree can be seen here.
 One of the most popular attractions in the Magic Kingdom, the Haunted Mansion, is located in this land.
 Presiding over the square is the Hall of Presidents, an American history show featuring an audio-animatronic figure of every President of the United States.
 Liberty Square has a long waterfront on the Rivers of America and the "Liberty Belle" Riverboat steam paddleboat departs from a landing here.
 The land affords excellent views of the river and Tom Sawyer Island in adjacent Frontierland. Torreyochloa pallida
Torreyochloa pallida is a species of grass known by the common names pale false mannagrass and weak manna grass.
 It is native to North America, especially the east and west sides.
 It grows in wet habitat, such as rivers, lakesides, bogs, and swamps.
 It is a rhizomatous perennial grass producing thick, erect to decumbent, sometimes matted stems which can easily exceed one meter in maximum length.
 The inflorescence is a branching panicle up to 25 centimeters long by 12 wide containing compressed spikelets with up to 8 florets each. Prussian carp
The Prussian carp, silver Prussian carp or Gibel carp ("Carassius gibelio"), is a member of the family Cyprinidae, which includes many other fish, such as the common carp, and the smaller minnows.
 It is a medium-sized cyprinid, and does not exceed a weight of 6.6 pounds (3 kg) and a size of 45 cm.
 They are usually silver, although other color variations exist.
 They are omnivorous and feed on plankton, invertebrates, plant material and detritus.
 Originally from Asia (Siberia), they have been introduced to and are now inhabiting lakes, ponds, and slow-moving rivers throughout Europe, North America, and Asia.