| #25, aired 2024-01-16 | TREES $100: This South American rainforest is said to be home to roughly 390 billion trees the Amazon |
| #8807, aired 2023-02-14 | STATE TREES $600: Massachusetts' state tree is the American species of this tree that can grow 100 feet tall the elm |
| #8743, aired 2022-11-16 | AMERICAN HISTORY $800: The work of this New Deal program, CCC for short, included planting trees--more than 3 billion in all Civilian Conservation Corps |
| #12, aired 2022-02-16 | THROWING SERIOUS SHADE $1,000 (Daily Double): Architectural Digest: "Say" this & "most people envision large shade trees with fragrant blossoms that evoke the American South" magnolia |
| #8498, aired 2021-10-27 | THE FOREST FOR THE TREES $1600: Jaguars & ocelots roam the Monteverde Cloud Forest Biological Reserve in this Central American nation Costa Rica |
| #8280, aired 2020-11-13 | AMERICAN HISTORY $400: First lady Helen Taft arranged the planting of hundreds of these trees along the Potomac River in Washington (Japanese) cherry trees |
| #8160, aired 2020-02-14 | TREES GROW ON MONEY $1200: One of the earliest American coins, the 17th century Massachusetts pine tree shilling was minted from this precious metal silver |
| #7012, aired 2015-02-24 | 1950s BESTSELLERS $2000: "Across the River & Into the Trees" was a 1950 bestseller by this giant of American literature Ernest Hemingway |
| #6941, aired 2014-11-17 | BOTANY $600: (Kelly of the Clue Crew stands in front of a tree in Cambodia.) The banyan tree, common in Asia, sends out roots that become new trees; botanically, it's a fig tree & it's part of this genus whose American versions are a little tamer Ficus |
| #6811, aired 2014-04-07 | AUTHORS' PLOTS $800: Sadly, there are no trees near this poet's plot in an American military cemetery in Picardie, France Joyce Kilmer |
| #6619, aired 2013-05-30 | TREES THE CHARM $1000: A Yarmouth, Maine tree called Herbie, a majestic American type of this tree, had to be cut down in 2010 at age 217 elm |
| #6314, aired 2012-02-16 | CENTRAL AMERICAN WILDLIFE $400: (Sarah of the Clue Crew gives the clue from Golfo Dulce in Costa Rica.) Macaws use their powerful beaks as a third foot when climbing trees & as a tool when opening nuts; inside their tongue is a little one of these structures that they use to dislodge nutmeat bone in their tongue (lever accepted) |
| #6140, aired 2011-04-29 | ARBOR DAY READING? $400: An American colonel is in love with an Italian countess in Hemingway's "Across" this "And Into The Trees" The River |
| #6029, aired 2010-11-25 | PLANTS & TREES $400: Varieties of this plant grown in American gardens include madonna, Korean aureum & tiger lilies |
| #5061, aired 2006-09-18 | TREES $1200: (Jon of the Clue Crew reports from Oregon.) Also called the Sierra redwood, or just "the big tree", it once covered much of the Northern Hemisphere; now it's down to a few groves the giant sequoia |
| #4968, aired 2006-03-29 | TREES & SHRUBS $2,000 (Daily Double): (Jon of the Clue Crew delivers the clue from the World Forestry Center in Oregon.) The familiar North American broad-leafed trees are mainly this type, from the Latin for "falling off" deciduous |
| #4959, aired 2006-03-16 | SURVIVOR GEOGRAPHY $1200: (Jeff Probst reads from near the thicket of trees again.) In 2005 "Survivor" went to the Maya Empire in this most populous Central American country Guatemala |
| #4889, aired 2005-12-08 | TREES $1200: This "quaking" tree has the widest natural range of any American tree, from the Yukon to the Rio Grande the aspen |
| #4590, aired 2004-07-16 | AMERICAN WRITERS $600: This poet who wrote "Trees" was killed in action during WWI Joyce Kilmer |
| #4192, aired 2002-11-19 | AMERICAN TREES $400: Native Americans made canoes up to 45 feet long from the bark of the paper type of this tree birch |
| #4192, aired 2002-11-19 | AMERICAN TREES $800: If you're sugaring off, you're taking advantage of natural sweets from this tree maple |
| #4192, aired 2002-11-19 | AMERICAN TREES $1200: Add 4 letters to "palm" to get this palm that has Texas & Louisiana types palmetto |
| #4192, aired 2002-11-19 | AMERICAN TREES $1600: 3-letter trees include elm, oak & this olive family member used for furniture & baseball bats ash |
| #4192, aired 2002-11-19 | AMERICAN TREES $2000: (Sofia of the Clue Crew reports) From the Latin, the name of this type of pine comes from its heavy mass Ponderosa Pine |
| #3733, aired 2000-11-22 | TREES $800: Its name is in part from the Greek syko, "fig"; the Near East tree, not the American one, is related to the fig Sycamore |
| #3676, aired 2000-09-04 | TREES $200: A blight has almost wiped out this "spreading" American tree, Castanea dentata the chestnut |
| #3581, aired 2000-03-13 | SOUTH AMERICAN BEAUTY $500: The name of this tree, seen here, comes from the language of Brazil's Tupi indians Jacaranda |
| #3105, aired 1998-02-13 | WHERE THE WILD THINGS ARE $200: Found in Central & South American forests, the spider monkey hangs from trees by this type of tail prehensile |
| #3071, aired 1997-12-29 | AMERICAN CUISINE $500: Craig Claiborne said, "There are more recipes for" this "bread than there are magnolia trees in the South" Cornbread |
| #3057, aired 1997-12-09 | UNDERNEATH THE BOUGH $300: Encarta says "These South American animals spend their entire existence hanging...from...trees" Sloths |
| #2922, aired 1997-04-22 | NUTS $300: Most of these "spreading" American trees have been killed by a disease that started near New York City in 1904 Chestnut |
| #2833, aired 1996-12-18 | PLANTS & TREES $100: The potato didn't originate in Ireland but in the valleys of this South American mountain chain Andes |
| #2701, aired 1996-05-06 | PLANTS & TREES $800: Species of this fiber-producing plant include American upland & Egyptian cotton |
| #2512, aired 1995-07-04 | TREES $2,500 (Daily Double): South American Indians called this tree, Hevea brasiliensis, cahuchu, which means "weeping wood" the rubber tree |
| #2453, aired 1995-04-12 | FOOD $100: This nut produced by oak trees was eaten by American Indians acorn |
| #2284, aired 1994-07-07 | TREES $200: The American holly tree produces fruit of this color red |
| #2284, aired 1994-07-07 | TREES $400: Ohioans could tell you that it's another name for the American horse chestnut the buckeye |
| #2099, aired 1993-10-21 | PLANTS & TREES $500: The American & English, with glossy leaves & red berries, are the best-known varieties of this tree the holly tree |
| #2037, aired 1993-06-15 | FOOD FACTS $2,000 (Daily Double): What American Indians once called "sweet water" came from these trees maples |
| #1612, aired 1991-09-10 | TREES $400: This Latin American tree produces the lightest wood in commercial use balsa |
| #1432, aired 1990-11-20 | TREES $100: The American variety of this tree is no longer spreading, since it was devastated by a blight the chestnut |
| #1411, aired 1990-10-22 | PLANTS & TREES $1,000 (Daily Double): Variety of rose that's the official flower of the District of Columbia the American Beauty |
| #1237, aired 1990-01-09 | ZOOLOGY $500: North American porcupines who gnaw the bark off trees are part of this "gnawing" order rodents |
| #14, aired 1984-09-27 | AMERICAN INDIANS $400: They symbolize family trees of N.W. Indians totem poles |
